Chlorothiazide interactions

Chlorothiazide (Diuril), a thiazide diuretic has 395 documented interactions across the FDA labels and fact sheets we index: 35 major, 311 moderate, 47 minor, and 2 where a label reports no significant interaction. Each entry below quotes the sentence behind it. This drug page is a starting point, not a verdict for your situation.

Interactions from the label

Major interactions (35)

  • Acetazolamidecarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Amiloridepotassium-sparing diureticMajor

    Hyperkalemia occurs commonly (about 10%) when amiloride is used without a kaliuretic diuretic. (Amiloride label, Boxed warning)

  • Arsenic trioxideQT-prolonging drugMajor

    The risk of torsade de pointes is related to the extent of QTc prolongation, concomitant administration of QTc prolonging drugs, a history of torsade de pointes, pre-existing QTc interval prolongation, congestive heart failure, administration of potassium-wasting diuretics, or other conditions that result in hypokalemia or hypomagnesemia. (Arsenic trioxide label, Warnings and precautions)

  • Brinzolamidecarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Bumetanideloop diureticMajor

    WARNING Bumetanide is a potent diuretic which, if given in excessive amounts, can lead to a profound diuresis with water and electrolyte depletion. (Bumetanide label, Boxed warning)

  • Because the use of diuretics can accentuate the diminished intravascular volume, avoid diuretics except in the late phase of resolution. (Choriogonadotropin alfa label, Warnings)

  • ClozapineantipsychoticMajor

    Use CLOZARIL cautiously in patients with cardiovascular or cerebrovascular disease or conditions predisposing to hypotension (e.g., dehydration, use of antihypertensive medications) [see Dosage and Administration ( 2.2 , 2.6 ), Warnings and Precautions ( 5.2 )]. (Clozapine label, Boxed warning)

  • CyclosporineimmunosuppressantMajor

    Potassium-Sparing Diuretics Cyclosporine should not be used with potassium-sparing diuretics because hyperkalemia can occur. (Cyclosporine label, Drug interactions)

  • CONTRAINDICATIONS PROGLYCEM is contraindicated in patients with: Functional hypoglycemia Hypersensitivity to diazoxide, any of the excipients in PROGLYCEM, or other thiazides (Diazoxide label, Contraindications)

  • Dichlorphenamidecarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • DofetilideantiarrhythmicMajor

    In the DIAMOND trials, 1252 patients were treated with dofetilide and diuretics concomitantly, of whom 493 died compared to 508 deaths among the 1248 patients receiving placebo and diuretics. (Dofetilide label, Drug interactions)

  • Dorzolamidecarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Dorzolamide and timololcarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Droperidoldopamine antagonistMajor

    Droperidol should be administered with extreme caution to patients who may be at risk for development of prolonged QT syndrome (e.g., congestive heart failure, bradycardia, use of a diuretic, cardiac hypertrophy, hypokalemia, hypomagnesemia, or administration of other drugs known to increase the QT interval). (Droperidol label, Boxed warning)

  • EnalaprilatACE inhibitorMajor

    …sometimes associated with oliguria and/or progressive azotemia, and rarely with acute renal failure and/or death, include those with the following conditions or characteristics: heart failure, hyponatremia, high dose diuretic therapy, recent intensive diuresis or increase in diuretic dose, renal dialysis, or severe volume and/or salt depletion of any etiology. (Enalaprilat label, Warnings)

  • Eplerenonealdosterone antagonistMajor

    …• serum creatinine > 2.0 mg/dL in males or >1.8 mg/dL in females, • creatinine clearance < 50 mL/min, or • concomitant administration of potassium supplements or potassium-sparing diuretics (e.g., amiloride, spironolactone, or triamterene) [see Warnings and Precautions (5.1) , Adverse Reactions (6.2) , Drug Interactions (7) , and Clinical Pharmacology (12.3)… (Eplerenone label, Contraindications)

  • Eptifibatideantiplatelet agentMajor

    …of active abnormal bleeding within the previous 30 days Severe hypertension (systolic blood pressure >200 mm Hg or diastolic blood pressure >110 mm Hg) not adequately controlled on antihypertensive therapy Major surgery within the preceding 6 weeks History of stroke within 30 days or any history of hemorrhagic stroke Current or planned administration of another… (Eptifibatide label, Contraindications)

  • Ethacrynic acidloop diureticMajor

    CONTRAINDICATIONS All diuretics, including ethacrynic acid, are contraindicated in anuria. (Ethacrynic acid label, Contraindications)

  • Because the use of diuretics can accentuate the diminished intravascular volume, diuretics should be avoided except in the late phase of resolution as described below. (Follitropin label, Warnings and precautions)

  • GentamicinaminoglycosideMajor

    The concurrent use of gentamicin with potent diuretics, such as ethacrynic acid or furosemide, should be avoided, since certain diuretics by themselves may cause ototoxicity. (Gentamicin label, Boxed warning)

  • Avoid diuretics or laxatives in patients with diarrhea. (Irinotecan label, Warnings and precautions)

  • Itraconazoleazole antifungalMajor

    Diuretics Eplerenone Contraindicated during and 2 weeks after TOLSURA treatment. (Itraconazole label, Drug interactions)

  • Methazolamidecarbonic anhydrase inhibitorMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Metolazonethiazide diureticMajor

    Other Antihypertensive Drugs When metolazone tablets, USP, are used with other antihypertensive drugs, particular care must be taken to avoid excessive reduction of blood pressure, especially during initial therapy. (Metolazone label, Warnings)

  • MinoxidilvasodilatorMajor

    Minoxidil should be reserved for hypertensive patients who do not respond adequately to maximum therapeutic doses of a diuretic and two other antihypertensive agents. (Minoxidil label, Boxed warning)

  • NeomycinaminoglycosideMajor

    The concurrent use of neomycin with potent diuretics such as ethacrynic acid or furosemide should be avoided, since certain diuretics by themselves may cause ototoxicity. (Neomycin label, Boxed warning)

  • Potassium citratepotassium supplementMajor

    The following drug interactions may occur with potassium citrate: Potassium-sparing diuretics: concomitant administration should be avoided since the simultaneous administration of these agents can produce severe hyperkalemia (7.1) (Potassium citrate label, Drug interactions)

  • QuinaprilACE inhibitorMajor

    …sometimes associated with oliguria and/or progressive azotemia, and rarely with acute renal failure and/or death, include patients with the following conditions or characteristics: heart failure, hyponatremia, high dose diuretic therapy, recent intensive diuresis or increase in diuretic dose, renal dialysis, or severe volume and/or salt depletion of any etiology. (Quinapril label, Warnings)

  • Silver sulfadiazinesulfonamideMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Sodium bicarbonateantacidMajor

    Sodium bicarbonate injection is contraindicated in patients who are losing chloride by vomiting or from continuous gastrointestinal suction and in patients receiving diuretics known to produce a hypochloremic alkalosis. (Sodium bicarbonate label, Contraindications)

  • SulfadiazinesulfonamideMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • SulfasalazinesulfonamideMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

  • TadalafilPDE5 inhibitorMajor

    …coadministration of an alpha-blocker and CIALIS for the treatment of BPH has not been adequately studied, and due to the potential vasodilatory effects of combined use resulting in blood pressure lowering, the combination of CIALIS and alpha-blockers is not recommended for the treatment of BPH. [see Dosage and Administration ( 2.7 ), Drug Interactions ( 7.1 ),… (Tadalafil label, Warnings and precautions)

  • ZonisamideanticonvulsantMajor

    Hypersensitivity to this product or to other sulfonamide-derived drugs. (Chlorothiazide label, Contraindications)

Moderate interactions (311)

  • AcarboseantidiabeticModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Acebutololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Albuterolbeta-adrenergic agonistModerate

    Diuretics: Use with caution. (Albuterol label, Drug interactions)

  • AlcoholAlcoholModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alfuzosinalpha blockerModerate

    Postural hypotension/syncope: Care should be taken in patients with symptomatic hypotension or who have had a hypotensive response to other medications or are concomitantly treated with antihypertensive medication or nitrates ( 5.1 ) (Alfuzosin label, Warnings and precautions)

  • AliskirenantihypertensiveModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Allopurinolxanthine oxidase inhibitorModerate

    Hypersensitivity reactions to allopurinol tablets may be increased in patients with decreased kidney function receiving thiazide diuretics and allopurinol tablets concurrently. (Allopurinol label, Warnings and precautions)

  • AlogliptinDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Alogliptin and metforminDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • AmikacinaminoglycosideModerate

    Ethacrynic Acid, Furosemide, Urea, or Mannitol Some diuretics can enhance aminoglycoside toxicity by altering aminoglycoside concentrations in serum and tissue. (Amikacin label, Drug interactions)

  • AmiodaroneantiarrhythmicModerate

    Give special attention to electrolyte and acid-base balance in patients experiencing severe or prolonged diarrhea or in patients receiving concomitant diuretics and laxatives. (Amiodarone label, Warnings and precautions)

  • Amlodipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Amlodipine and atorvastatindihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Amlodipine and benazeprildihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Amlodipine and olmesartandihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Amlodipine and valsartandihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Arformoterolbeta-adrenergic agonistModerate

    Xanthine derivatives, steroids, diuretics, or non-potassium sparing diuretics may potentiate hypokalemia or ECG changes. (Arformoterol label, Drug interactions)

  • AripiprazoleantipsychoticModerate

    Antihypertensive Drugs Due to its alpha-adrenergic antagonism, aripiprazole has the potential to enhance the effect of certain antihypertensive agents. (Aripiprazole label, Drug interactions)

  • ArmodafinilCNS stimulantModerate

    There was also a slightly greater proportion of patients on NUVIGIL requiring new or increased use of antihypertensive medications (2.9%) compared to patients on placebo (1.8%). (Armodafinil label, Warnings and precautions)

  • AsenapineantipsychoticModerate

    Orthostatic vital signs should be monitored in patients who are vulnerable to hypotension (elderly patients, patients with dehydration, hypovolemia, concomitant treatment with antihypertensive medications, patients with known cardiovascular disease (history of myocardial infarction or ischemic heart disease, heart failure, or conduction abnormalities), and patients… (Asenapine label, Warnings and precautions)

  • AspirinNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Aspirin and dipyridamoleantiplatelet agentModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Atenololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Atenolol and chlorthalidonebeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Atomoxetinenorepinephrine reuptake inhibitorModerate

    Antihypertensive Drugs Prevention or Management Increase the frequency of monitoring blood pressure and adjust atomoxetine oral solution dosage as clinically appropriate. (Atomoxetine label, Drug interactions)

  • AvanafilPDE5 inhibitorModerate

    • Use of avanafil with alpha-blockers, other antihypertensives, or substantial amounts of alcohol (greater than 3 units) may lead to hypotension ( 2.3 , 5.6 , 5.7 ) (Avanafil label, Warnings and precautions)

  • Azilsartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Baclofenmuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • Belladonna and opiumopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • BenazeprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • BenzphetamineCNS stimulantModerate

    Amphetamines may decrease the hypotensive effect of antihypertensives. (Benzphetamine label, Drug interactions)

  • Betaxololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • BexagliflozinSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Bisoprololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • BortezomibModerate

    Hypotension: Use caution when treating patients taking antihypertensives, with a history of syncope, or with dehydration. (Bortezomib label, Warnings and precautions)

  • BrexpiprazoleantipsychoticModerate

    Orthostatic vital signs should be monitored in patients who are vulnerable to hypotension (e.g., elderly patients, patients with dehydration, hypovolemia, concomitant treatment with antihypertensive medication), patients with known cardiovascular disease (history of myocardial infarction, ischemic heart disease, heart failure, or conduction abnormalities), and… (Brexpiprazole label, Warnings and precautions)

  • Brimonidinealpha-adrenergic agonistModerate

    Antihypertensives/Cardiac Glycosides Because brimonidine tartrate ophthalmic solution 0.1% and 0.15% may reduce blood pressure, caution in using drugs such as antihypertensives and/or cardiac glycosides with brimonidine tartrate ophthalmic solution 0.1% and 0.15% is advised. (Brimonidine label, Drug interactions)

  • Brimonidine and timololalpha-adrenergic agonistModerate

    Antihypertensives/Cardiac Glycosides Because brimonidine tartrate/timolol maleate ophthalmic solution may reduce blood pressure, caution in using drugs such as antihypertensives and/or cardiac glycosides with brimonidine tartrate/timolol maleate ophthalmic solution is advised. (Brimonidine and timolol label, Drug interactions)

  • Bromocriptinedopamine agonistModerate

    Use caution in patients taking antihypertensive medications. (Bromocriptine label, Warnings and precautions)

  • Central Nervous System (CNS) depressants Antihistamines have additive effects with alcohol and other CNS depressants (hypnotics, sedatives, tranquilizers, antianxiety agents, etc.). Antihypertensive drugs Sympathomimetic may reduce the effects of antihypertensive drugs. (Brompheniramine, pseudoephedrine, and dextromethorphan label, Drug interactions)

  • Budesonide and formoterolcorticosteroidModerate

    Diuretics: Use with caution. (Budesonide and formoterol label, Drug interactions)

  • BuprenorphineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Butalbital and acetaminophenbarbiturateModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • ButorphanolopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Calcitriolvitamin D analogModerate

    Thiazides Thiazides are known to induce hypercalcemia by the reduction of calcium excretion in urine. (Calcitriol label, Drug interactions)

  • Drugs That Increase the Risk of Hypercalcemia Increase frequency of monitoring of calcium concentrations in patients taking concomitant Calcium Chloride Injection and other drugs that increase the risk of hypercalcemia (e.g., calcipotriene, estrogen, lithium, parathyroid hormone, teriparatide, thiazide diuretics, Vitamin A, and Vitamin D). (Calcium chloride label, Drug interactions)

  • CanagliflozinSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Candesartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Candesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • CaptoprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • CarbamazepineanticonvulsantModerate

    Elderly patients and patients treated with diuretics are at greater risk of developing hyponatremia. (Carbamazepine label, Warnings and precautions)

  • CarbidopaModerate

    Symptomatic postural hypotension has occurred when carbidopa, given with levodopa or carbidopa-levodopa combination products, was added to the treatment of a patient receiving antihypertensive drugs. (Carbidopa label, Drug interactions)

  • Carbidopa and levodopadopaminergic drugModerate

    Antihypertensive drugs: May cause symptomatic postural hypotension. (Carbidopa and levodopa label, Drug interactions)

  • Carbidopa, levodopa, and entacaponedopaminergic drugModerate

    Antihypertensive Agents Symptomatic postural hypotension has occurred when carbidopa/levodopa was added to the treatment of patients receiving antihypertensive drugs. (Carbidopa, levodopa, and entacapone label, Drug interactions)

  • CariprazineantipsychoticModerate

    Orthostatic vital signs should be monitored in patients who are vulnerable to hypotension (e.g., elderly patients, patients with dehydration, hypovolemia, and concomitant treatment with antihypertensive medications), patients with known cardiovascular disease (history of myocardial infarction, ischemic heart disease, heart failure, or conduction abnormalities), and… (Cariprazine label, Warnings and precautions)

  • Carisoprodolmuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • Carvedilolbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • CefepimecephalosporinModerate

    Diuretics: Nephrotoxicity has been reported with concomitant administration of cephalosporins with potent diuretics such as furosemide. (Cefepime label, Drug interactions)

  • CeftazidimecephalosporinModerate

    Drug Interactions Nephrotoxicity has been reported following concomitant administration of cephalosporins with aminoglycoside antibacterial drugs or potent diuretics such as furosemide. (Ceftazidime label, Drug interactions)

  • CelecoxibNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • ChlorpromazineantipsychoticModerate

    Thiazide diuretics may accentuate the orthostatic hypotension that may occur with phenothiazines. (Chlorpromazine label, Precautions)

  • Chlorthalidonethiazide diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Chlorzoxazonemuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • Cholestyraminebile acid sequestrantModerate

    Drug Interactions Cholestyramine for Oral Suspension USP may delay or reduce the absorption of concomitant oral medication such as phenylbutazone, warfarin, thiazide diuretics (acidic), or propranolol (basic), as well as tetracycline, penicillin G, phenobarbital, thyroid and thyroxine preparations, estrogens and progestins, and digitalis. (Cholestyramine label, Drug interactions)

  • CitalopramSSRIModerate

    Elderly patients, patients taking diuretics, and those who are volume depleted may be at greater risk for developing hyponatremia with SSRIs [see Use in Specific Populations ( 8.5 )] . (Citalopram label, Warnings and precautions)

  • ClofarabineantimetaboliteModerate

    Consider use of diuretics and/or albumin. (Clofarabine label, Warnings and precautions)

  • Clonidinealpha-adrenergic agonistModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • CodeineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Colestipolbile acid sequestrantModerate

    Studies in humans show that the absorption of chlorothiazide as reflected in urinary excretion is markedly decreased even when administered one hour before colestipol hydrochloride. (Colestipol label, Drug interactions)

  • Cyclobenzaprinemuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • CyclophosphamideimmunosuppressantModerate

    …inhibitors: ACE inhibitors can cause leukopenia. ● Natalizumab ● Paclitaxel: Increased hematotoxicity has been reported when cyclophosphamide was administered after paclitaxel infusion. ● Thiazide diuretics ● Zidovudine Increased cardiotoxicity ● Anthracyclines ● Cytarabine ● Pentostatin ● Radiation therapy of the cardiac region ● Trastuzumab Increased pulmonary toxicity… (Cyclophosphamide label, Drug interactions)

  • Dantrolenemuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • DapagliflozinSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Dapagliflozin and metforminSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Desipraminetricyclic antidepressantModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia with NORPRAMIN. (Desipramine label, Warnings)

  • DesmopressinModerate

    …Hyponatremia Concomitant administration of DESMODA with other drugs that may increase the risk of water intoxication with hyponatremia, (e.g., tricyclic antidepressants, selective serotonin re-uptake inhibitors, chlorpromazine, opiate analgesics, thiazide diuretics, NSAIDs, lamotrigine, sulfonylureas, particularly chlorpropamide, oxybutynin and carbamazepine). (Desmopressin label, Drug interactions)

  • DesvenlafaxineSNRIModerate

    Also, patients taking diuretics or who are otherwise volume depleted can be at greater risk [see Use in Specific Populations (8.5) and Clinical Pharmacology (12.3) ] . (Desvenlafaxine label, Warnings and precautions)

  • Dexlansoprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions (6.2) ] . (Dexlansoprazole label, Warnings and precautions)

  • DexmethylphenidateCNS stimulantModerate

    • Antihypertensive Drugs: Monitor blood pressure. (Dexmethylphenidate label, Drug interactions)

  • DiclofenacNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • DiethylpropionCNS stimulantModerate

    The pressor effects of diethylpropion and those of other drugs may be additive when the drugs are used concomitantly; conversely, diethylpropion may interfere with antihypertensive drugs (i.e., guanethidine, a-methyldopa). (Diethylpropion label, Drug interactions)

  • DiflunisalNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Digoxindigitalis glycosideModerate

    Serum potassium levels should be carefully monitored when digoxin is given to patients at high risk of hypokalemia ( e.g. , those receiving diuretics, corticosteroids, or other drugs that commonly lead to potassium loss; those with gastrointestinal losses through diarrhea, vomiting, or nasogastric suction; or those with potassium-losing endocrinopathies or nephropathies). (Digoxin label, Warnings and precautions)

  • Diltiazemcalcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Doxazosinalpha blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Doxercalciferolvitamin D analogModerate

    Risk may be increased when used concomitantly with high dose calcium preparations, thiazide diuretics, or vitamin D compounds. (Doxercalciferol label, Warnings and precautions)

  • Drospirenone and ethinyl estradioloral contraceptiveModerate

    Medications that may increase serum potassium concentration include ACE inhibitors, angiotensin-II receptor antagonists, potassium-sparing diuretics, potassium supplementation, heparin, aldosterone antagonists, and NSAIDS. (Drospirenone and ethinyl estradiol label, Warnings and precautions)

  • DulaglutideGLP-1 receptor agonistModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • DuloxetineSNRIModerate

    The risk of BP decreases may be greater in patients taking concomitant medications that induce orthostatic hypotension (such as antihypertensives) or are potent CYP1A2 inhibitors [see Drug Interactions ( 7.1 )] and in patients taking duloxetine delayed-release capsules at doses above 60 mg daily. (Duloxetine label, Warnings and precautions)

  • EluxadolineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • EmpagliflozinSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Empagliflozin and metforminSGLT2 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • EnalaprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • EpinephrinesympathomimeticModerate

    …Precautions (5.6) and Adverse Reactions (6) ]. β-blockers, such as propranolol Cyclopropane or halogenated hydrocarbon anesthetics, such as halothane Antihistamines Thyroid hormones Diuretics Cardiac glycosides, such as digitalis glycosides Quinidine Drugs potentiating hypokalemic effects of epinephrine • Potassium depleting diuretics • Corticosteroids • Theophylline… (Epinephrine label, Drug interactions)

  • Epoetin alfaModerate

    Following initiation and titration of Epogen, approximately 25% of patients on dialysis required initiation of or increases in antihypertensive therapy; hypertensive encephalopathy and seizures have been reported in patients with CKD receiving Epogen. (Epoetin alfa label, Warnings and precautions)

  • Epoprostenolprostaglandin analogModerate

    Additional reductions in blood pressure may occur when VELETRI is administered with diuretics, antihypertensive agents, or other vasodilators. (Epoprostenol label, Drug interactions)

  • EscitalopramSSRIModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk. (Escitalopram label, Warnings and precautions)

  • Esmololbeta blockerModerate

    Antihypertensive agents clonidine, guanfacine, or moxonidine: Beta blockers also increase the risk of clonidine-, guanfacine-, or moxonidine-withdrawal rebound hypertension. (Esmolol label, Drug interactions)

  • Esomeprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions (6.2) ] . (Esomeprazole label, Warnings and precautions)

  • EtodolacNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • ExenatideGLP-1 receptor agonistModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Felodipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • FenoprofenNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • FentanylopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Fluconazoleazole antifungalModerate

    An effect of this magnitude should not necessitate a change in the fluconazole dose regimen in subjects receiving concomitant diuretics. (Fluconazole label, Drug interactions)

  • FludrocortisonecorticosteroidModerate

    Amphotericin B or potassium-depleting diuretics (benzothiadiazines and related drugs, ethacrynic acid and furosemide)—enhanced hypokalemia. (Fludrocortisone label, Drug interactions)

  • FluoxetineSSRIModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Fluoxetine label, Warnings and precautions)

  • FlurbiprofenNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Fluticasone and salmeterolcorticosteroidModerate

    Diuretics: Use with caution. (Fluticasone and salmeterol label, Drug interactions)

  • FluvoxamineSSRIModerate

    Also, patients taking diuretics or who are otherwise volume depleted may be at greater risk. (Fluvoxamine label, Warnings and precautions)

  • Formoterolbeta-adrenergic agonistModerate

    • Xanthine derivatives, steroids, diuretics, or non-potassium sparing diuretics may potentiate hypokalemia or ECG changes. (Formoterol label, Drug interactions)

  • FoscarnetantiviralModerate

    When diuretics are indicated, thiazides are recommended over loop diuretics because the latter inhibit renal tubular secretion, and may impair elimination of FOSCAVIR, potentially leading to toxicity. (Foscarnet label, Drug interactions)

  • FosinoprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Furosemideloop diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • GlimepiridesulfonylureaModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • GlipizidesulfonylureaModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Glipizide and metforminsulfonylureaModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • GlyburidesulfonylureaModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Glyburide and metforminsulfonylureaModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Guanfacinealpha-adrenergic agonistModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • HaloperidolantipsychoticModerate

    Caution is advised when haloperidol decanoate is used in combination with drugs known to cause electrolyte imbalance (e.g., diuretics or corticosteroids) because hypokalemia, hypomagnesemia, and hypocalcemia are risk factors for QT prolongation. (Haloperidol label, Drug interactions)

  • HydralazinevasodilatorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Hydrochlorothiazidethiazide diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • HydrocodoneopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • HydromorphoneopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • IbuprofenNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • IloperidoneantipsychoticModerate

    Orthostatic vital signs should be monitored in patients who are vulnerable to hypotension (e.g., elderly patients, patients with dehydration, hypovolemia, and concomitant treatment with antihypertensive medications), patients with known cardiovascular disease (history of myocardial infarction, ischemic heart disease, heart failure, or conduction abnormalities), and… (Iloperidone label, Warnings and precautions)

  • Imipraminetricyclic antidepressantModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia with imipramine hydrochloride tablets. (Imipramine label, Warnings)

  • Indapamidethiazide diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • IndomethacinNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Insulin aspartinsulinModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Insulin degludecinsulinModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Insulin detemirinsulinModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Insulin glargineinsulinModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Insulin lisproinsulinModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Ipratropium and albuterolanticholinergicModerate

    Diuretics The electrocardiogram (ECG) changes and/or hypokalemia that may result from the administration of non-potassium sparing diuretics (such as loop or thiazide diuretics) can be acutely worsened by β-agonists, especially when the recommended dose of the β-agonist is exceeded. (Ipratropium and albuterol label, Drug interactions)

  • Irbesartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Irbesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Isradipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Ketoconazoleazole antifungalModerate

    Diuretics eplerenone The potential increase in plasma concentrations of eplerenone when coadministered with ketoconazole tablets may increase the risk of hyperkalemia and hypotension. (Ketoconazole label, Drug interactions)

  • KetoprofenNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • KetorolacNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Labetalolbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Lansoprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions (6.2) ] . (Lansoprazole label, Warnings and precautions)

  • Levalbuterolbeta-adrenergic agonistModerate

    Diuretics The ECG changes or hypokalemia that may result from the administration of non-potassium-sparing diuretics (such as loop and thiazide diuretics) can be acutely worsened by beta-agonists, especially when the recommended dose of the beta-agonist is exceeded. (Levalbuterol label, Drug interactions)

  • LevomilnacipranSNRIModerate

    Also, patients taking diuretics or who are otherwise volume depleted can be at greater risk. (Levomilnacipran label, Warnings and precautions)

  • LevorphanolopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • LinagliptinDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Linagliptin and metforminDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • LinezolidantibioticModerate

    Monitor serum sodium levels regularly in the elderly, in patients taking diuretics, and in other patients at risk of hyponatremia and/or SIADH while taking Linezolid injection. (Linezolid label, Warnings and precautions)

  • LiraglutideGLP-1 receptor agonistModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • LisinoprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Lithiumserotonergic drugModerate

    Lithium generally should not be given with diuretics (see PRECAUTIONS , Drug Interactions ). (Chlorothiazide label, Warnings)

  • Lofexidinealpha-adrenergic agonistModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Losartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Losartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • LumateperoneantipsychoticModerate

    Orthostatic vital signs should be monitored in patients who are vulnerable to hypotension (e.g., elderly patients, patients with dehydration, hypovolemia, and concomitant treatment with antihypertensive drugs), patients with known cardiovascular disease (history of myocardial infarction, ischemic heart disease, heart failure, or conduction abnormalities), and patients… (Lumateperone label, Warnings and precautions)

  • LurasidoneantipsychoticModerate

    Patients at increased risk of these adverse reactions or at increased risk of developing complications from hypotension include those with dehydration, hypovolemia, treatment with antihypertensive medication, history of cardiovascular disease (e.g., heart failure, myocardial infarction, ischemia, or conduction abnormalities), history of cerebrovascular disease,… (Lurasidone label, Warnings and precautions)

  • MecamylamineantihypertensiveModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Mefenamic acidNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • MeloxicamNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • MeperidineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Metaxalonemuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • MetforminbiguanideModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • MethadoneopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Methocarbamolmuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • MethohexitalbarbiturateModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • MethyldopaantihypertensiveModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • MethylphenidateCNS stimulantModerate

    Antihypertensive Drugs: Monitor blood pressure. (Methylphenidate label, Drug interactions)

  • Metoprololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • MiglitolantidiabeticModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • MilnacipranSNRIModerate

    Also, patients taking diuretics or who are otherwise volume-depleted may be at greater risk [see Geriatric Use ( 8.5 )] . (Milnacipran label, Warnings and precautions)

  • MirtazapineantidepressantModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia [see Use in Specific Populations (8.5) ] . (Mirtazapine label, Warnings and precautions)

  • ModafinilCNS stimulantModerate

    However, a retrospective analysis of the use of antihypertensive medication in these studies showed that a greater proportion of patients on PROVIGIL required new or increased use of antihypertensive medications (2.4%) compared to patients on placebo (0.7%). (Modafinil label, Warnings and precautions)

  • MoexiprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • MorphineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • NabumetoneNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Nadololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • NalbuphineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • NaproxenNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • NateglinidemeglitinideModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Nebivololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • NiacinModerate

    Antihypertensive Therapy Niacin may potentiate the effects of ganglionic blocking agents and vasoactive drugs resulting in postural hypotension. (Niacin label, Drug interactions)

  • Nicardipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Nifedipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Nimodipinedihydropyridine calcium channel blockerModerate

    Blood Pressure Lowering Drugs Nimodipine may increase the blood pressure lowering effect of concomitantly administered anti-hypertensives such as diuretics, beta-blockers, ACE inhibitors, angiotensin receptor blockers, other calcium channel blockers, α-adrenergic blockers, PDE5 inhibitors, and α-methyldopa. (Nimodipine label, Drug interactions)

  • Nisoldipinedihydropyridine calcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • NitroglycerinnitrateModerate

    Antihypertensives: Possible additive hypotensive effects. (Nitroglycerin label, Drug interactions)

  • NitroprussidevasodilatorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • OlanzapineantipsychoticModerate

    …of myocardial infarction or ischemia, heart failure, or conduction abnormalities), cerebrovascular disease, and conditions which would predispose patients to hypotension (dehydration, hypovolemia, and treatment with antihypertensive medications) where the occurrence of syncope, or hypotension and/or bradycardia might put the patient at increased medical risk. (Olanzapine label, Warnings and precautions)

  • Olanzapine and fluoxetineantipsychoticModerate

    …and fluoxetine capsules should be used with particular caution in patients with known cardiovascular disease (history of myocardial infarction or ischemia, heart failure, or conduction abnormalities), cerebrovascular disease, or conditions that would predispose patients to hypotension (dehydration, hypovolemia, and treatment with antihypertensive medications). (Olanzapine and fluoxetine label, Warnings and precautions)

  • OliceridineopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Olmesartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Olmesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Olmesartan, amlodipine, and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Omeprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions ( 6.2 )] . (Omeprazole label, Warnings and precautions)

  • Omeprazole and sodium bicarbonateproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions ( 6.2 )] . (Omeprazole and sodium bicarbonate label, Warnings and precautions)

  • Orphenadrinemuscle relaxantModerate

    Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • Skeletal Muscle Relaxants, Nondepolarizing (e.g., Tubocurarine) - possible increased responsiveness to the muscle relaxant. (Chlorothiazide label, Drug interactions)

  • OxaprozinNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • OxycodoneopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • OxymorphoneopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • PaliperidoneantipsychoticModerate

    Use ERZOFRI with caution in patients with known cardiovascular disease (e.g., heart failure, history of myocardial infarction or ischemia, conduction abnormalities), cerebrovascular disease, or conditions that predispose the patient to hypotension (e.g., dehydration, hypovolemia, and treatment with antihypertensive medications). (Paliperidone label, Warnings and precautions)

  • Pantoprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions (6.2) ]. (Pantoprazole label, Warnings and precautions)

  • Paricalcitolvitamin D analogModerate

    The risk may be increased when Paricalcitol Injection is used concomitantly with high dose calcium preparations, thiazide diuretics, or vitamin D compounds. (Paricalcitol label, Warnings and precautions)

  • ParoxetineSSRIModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia with SNRIs and SSRIs. [see Use in Specific Populations ( 8.5 )]. (Paroxetine label, Warnings and precautions)

  • PazopanibModerate

    Monitor blood pressure as clinically indicated and initiate and adjust antihypertensive therapy as appropriate. (Pazopanib label, Warnings and precautions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • PentoxifyllinemethylxanthineModerate

    Small decreases in blood pressure have been observed in some patients treated with pentoxifylline extended-release tablets; periodic systemic blood pressure monitoring is recommended for patients receiving concomitant antihypertensive therapy. (Pentoxifylline label, Drug interactions)

  • PerindoprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • PhenelzineMAO inhibitorModerate

    …hydrochloride desipramine hydrochloride imipramine hydrochloride doxepin carbamazepine cyclobenzaprine HCl amoxapine maprotiline HCl trimipramine maleate protriptyline HCl mirtazapine Phenelzine sulfate should be used with caution in combination with antihypertensive drugs, including thiazide diuretics and β-blockers, since exaggerated hypotensive effects may result. (Phenelzine label, Warnings)

  • PhenobarbitalbarbiturateModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Phenoxybenzaminealpha blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Phentermine and topiramateCNS stimulantModerate

    In addition, when phentermine and topiramate extended-release capsules are used in conjunction with nonpotassium sparing diuretics this may further potentiate potassium-wasting. (Phentermine and topiramate label, Warnings and precautions)

  • Pindololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • PioglitazonethiazolidinedioneModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Pioglitazone and glimepiridethiazolidinedioneModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Pioglitazone and metforminthiazolidinedioneModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • PiroxicamNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Concurrent use with potassium-containing medications, potassium-sparing diuretics and angiotensin-converting enzyme inhibitors (ACE inhibitors) may result in hyperkalemia and cardiac arrhythmias or cardiac arrest. (Potassium iodide label, Drug interactions)

  • Prazosinalpha blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • PrimidoneanticonvulsantModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • ProchlorperazineantipsychoticModerate

    Thiazide diuretics may accentuate the orthostatic hypotension that may occur with phenothiazines. (Prochlorperazine label, Precautions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Propranololbeta blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • QuetiapineantipsychoticModerate

    Quetiapine should be used with particular caution in patients with known cardiovascular disease (history of myocardial infarction or ischemic heart disease, heart failure, or conduction abnormalities), cerebrovascular disease, or conditions which would predispose patients to hypotension (dehydration, hypovolemia, and treatment with antihypertensive medications). (Quetiapine label, Warnings and precautions)

  • Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • QuinidineantiarrhythmicModerate

    Drugs that alkalinize the urine ( carbonic-anhydrase inhibitors, sodium bicarbonate, thiazide diuretics ) reduce renal elimination of quinidine. (Quinidine label, Drug interactions)

  • Rabeprazoleproton pump inhibitorModerate

    For patients expected to be on prolonged treatment or who take PPIs with medications such as digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), health care professionals may consider monitoring magnesium levels prior to initiation of PPI treatment and periodically [see Adverse Reactions (6.2) ]. (Rabeprazole label, Warnings and precautions)

  • RamiprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • RemifentanilopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • RepaglinidemeglitinideModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • RiociguatvasodilatorModerate

    Consider the potential for symptomatic hypotension or ischemia in patients with hypovolemia, severe left ventricular outflow obstruction, resting hypotension, autonomic dysfunction, or concomitant treatment with antihypertensives or strong CYP and P-gp/BCRP inhibitors [see Drug Interactions (7.2) and Clinical Pharmacology (12.3) ] . (Riociguat label, Warnings and precautions)

  • RisperidoneantipsychoticModerate

    Clinically significant hypotension has been observed with concomitant use of oral RISPERDAL and antihypertensive medication. (Risperidone label, Warnings and precautions)

  • Sacubitril and valsartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Salmeterolbeta-adrenergic agonistModerate

    • Diuretics: Use with caution. (Salmeterol label, Drug interactions)

  • SalsalateNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • SaxagliptinDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Saxagliptin and metforminDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • SemaglutideGLP-1 receptor agonistModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • SertralineSSRIModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia with SSRIs [see Use in Specific Populations ( 8.5 )] . (Sertraline label, Warnings and precautions)

  • SildenafilPDE5 inhibitorModerate

    Caution is advised when SILDENAFIL ORAL FILM is co-administered with alpha-blockers or antihypertensives. (Sildenafil label, Warnings and precautions)

  • Silodosinalpha blockerModerate

    However, patients in the Phase 3 clinical studies taking concomitant antihypertensive medications with silodosin capsules did not experience a significant increase in the incidence of syncope, dizziness, or orthostasis. (Silodosin label, Warnings and precautions)

  • SitagliptinDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Sitagliptin and metforminDPP-4 inhibitorModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Increase the dose of diuretics as needed [see Adverse Reactions (6) ] . (Sodium zirconium cyclosilicate label, Warnings and precautions)

  • SorafenibModerate

    Consider temporary or permanent discontinuation for severe or persistent hypertension despite antihypertensive therapy. (Sorafenib label, Warnings and precautions)

  • Sotalolbeta blockerModerate

    Special attention should be given to electrolyte and acid-base balance in patients experiencing severe or prolonged diarrhea or patients receiving concomitant diuretic drugs. (Sotalol label, Warnings and precautions)

  • Spironolactonealdosterone antagonistModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Spironolactone and hydrochlorothiazidealdosterone antagonistModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Succinylcholineneuromuscular blockerModerate

    Prolonged Neuromuscular Block in Patients with Hypokalemia or Hypocalcemia Neuromuscular blockade may be prolonged in patients with hypokalemia (e.g., after severe vomiting, diarrhea, digitalisation and diuretic therapy) or hypocalcemia (e.g., after massive transfusions). (Succinylcholine label, Warnings and precautions)

  • SulindacNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • SunitinibModerate

    Initiate and/or adjust antihypertensive therapy as appropriate. (Sunitinib label, Warnings and precautions)

  • TacrolimusimmunosuppressantModerate

    • Hypertension: May require antihypertensive therapy; monitor relevant drug interactions. (Tacrolimus label, Warnings and precautions)

  • TapentadolopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Telmisartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Telmisartan and amlodipineangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Telmisartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Terazosinalpha blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Terbutalinebeta-adrenergic agonistModerate

    Diuretics The ECG changes and/or hypokalemia that may result from the administration of non-potassium sparing diuretics (such as loop or thiazide diuretics) can be acutely worsened by beta-agonists, especially when the recommended dose of the beta-agonist is exceeded. (Terbutaline label, Precautions)

  • TestosteroneandrogenModerate

    In patients with hypertension on antihypertensive therapy, TLANDO increased the mean systolic/diastolic BP by 4.8/1.6 mm Hg from baseline. [see Adverse Reactions ( 6.1 )] . (Testosterone label, Warnings and precautions)

  • TirzepatideGLP-1 receptor agonistModerate

    Antidiabetic Drugs (Oral Agents and Insulin) - dosage adjustment of the antidiabetic drug may be required. (Chlorothiazide label, Drug interactions)

  • Tizanidinemuscle relaxantModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • TobramycinaminoglycosideModerate

    Some diuretics can enhance aminoglycoside toxicity by altering antibiotic concentrations in serum and tissue. (Tobramycin label, Drug interactions)

  • TolmetinNSAIDModerate

    Non-steroidal Anti-inflammatory Drugs (NSAIDs) Including Selective Cyclooxygenase-2 (COX-2) Inhibitors - In some patients, the administration of a non-steroidal anti-inflammatory agent including a selective COX-2 inhibitor can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. (Chlorothiazide label, Drug interactions)

  • TolvaptanModerate

    Co-administration of diuretics also increases the risk of too rapid correction of serum sodium and such patients should undergo close monitoring of serum sodium. (Tolvaptan label, Warnings and precautions)

  • Toremifeneselective estrogen receptor modulatorModerate

    Drugs that decrease renal calcium excretion, e.g., thiazide diuretics, may increase the risk of hypercalcemia in patients receiving FARESTON. (Toremifene label, Drug interactions)

  • Torsemideloop diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • TramadolopioidModerate

    Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • Alcohol, Barbiturates, or Narcotics - potentiation of orthostatic hypotension may occur. (Chlorothiazide label, Drug interactions)

  • TrandolaprilACE inhibitorModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • TrazodoneantidepressantModerate

    Concomitant use with an antihypertensive may require a reduction in the dose of the antihypertensive drug. (Trazodone label, Warnings and precautions)

  • Triamterenepotassium-sparing diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Triamterene and hydrochlorothiazidepotassium-sparing diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • TrifluoperazineantipsychoticModerate

    Thiazide diuretics may accentuate the orthostatic hypotension that may occur with phenothiazines. (Trifluoperazine label, Precautions)

  • Umeclidinium and vilanterolanticholinergicModerate

    • Diuretics: Use with caution. (Umeclidinium and vilanterol label, Drug interactions)

  • Valsartanangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • Valsartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Moderate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • VardenafilPDE5 inhibitorModerate

    Vardenafil hydrochloride tablets can potentiate the hypotensive effects of nitrates, alpha- blockers, and antihypertensives. (Vardenafil label, Drug interactions)

  • VenlafaxineSNRIModerate

    Also, patients taking diuretics or who are otherwise volume-depleted may be at greater risk [see Use in Specific Populations ( 8.5 )] . (Venlafaxine label, Warnings and precautions)

  • Verapamilcalcium channel blockerModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Chlorothiazide label, Warnings)

  • VilazodoneSSRIModerate

    Elderly patients, patients taking diuretics, and those who are volume-depleted may be at greater risk of developing hyponatremia with SSRIs and SNRIs [see Use in Specific Populations ( 8.5 )] . (Vilazodone label, Warnings and precautions)

  • Vitamin DVitamin and mineralModerate

    Thiazide diuretics reduce calcium excretion; combined with vitamin D and calcium supplements this can lead to hypercalcemia, especially in older adults. (NIH Office of Dietary Supplements, Vitamin D)

  • VortioxetineantidepressantModerate

    Also, patients taking diuretics or who are otherwise volume-depleted can be at greater risk. (Vortioxetine label, Warnings and precautions)

  • ZiprasidoneantipsychoticModerate

    Hypokalemia may result from diuretic therapy, diarrhea, and other causes. (Ziprasidone label, Warnings and precautions)

  • Zoledronic acidbisphosphonateModerate

    Elderly patients and those receiving diuretic therapy are at increased risk of acute renal failure. (Zoledronic acid label, Warnings and precautions)

Minor mentions (47)

  • Patients required intervention with a diuretic, fluid management, or, in some cases, hospitalization for decompensating heart failure. (Ambrisentan label, Warnings and precautions)

  • Azelastine and fluticasoneantihistamineMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • BeclomethasonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • BetamethasonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • BosentanCYP3A4 inducerMinor

    Patients required intervention with a diuretic, fluid management, or hospitalization for decompensating heart failure. (Bosentan label, Warnings and precautions)

  • BudesonidecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • CalciumVitamin and mineralMinor

    Thiazide diuretics reduce calcium excretion, so high calcium intake can raise blood calcium. (NIH Office of Dietary Supplements, Calcium)

  • Drugs that may cause hypercalcemia: Vitamin D, vitamin A, thiazide diuretics, estrogen, calcipotriene and teriparatide administration may cause hypercalcemia. (Calcium gluconate label, Drug interactions)

  • CiclesonidecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • ClobetasolcorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • Acthar Gel may accentuate the electrolyte loss associated with diuretic therapy. (Corticotropin label, Drug interactions)

  • Fluid retention events were typically managed by supportive care measures that may include diuretics or short courses of steroids. (Dasatinib label, Warnings and precautions)

  • DeflazacortcorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • Desogestrel and ethinyl estradioloral contraceptiveMinor

    If other contraceptive methods are not suitable, hormonal contraceptive therapy may continue combined with antihypertensive therapy. (Desogestrel and ethinyl estradiol label, Warnings)

  • DesonidecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • DexamethasonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • DextroamphetamineCNS stimulantMinor

    Examples of alkalinizing agents include gastrointestinal alkalinizing agents (e.g., sodium bicarbonate) and urinary alkalinizing agents (e.g. acetazolamide, some thiazides). (Dextroamphetamine label, Drug interactions)

  • Patients developing peripheral edema may be treated with standard measures, e.g., salt restriction, oral diuretic(s). (Docetaxel label, Warnings and precautions)

  • DronedaroneantiarrhythmicMinor

    Hypokalemia and Hypomagnesemia with Potassium-Depleting Diuretics Hypokalemia or hypomagnesemia may occur with concomitant administration of potassium-depleting diuretics. (Dronedarone label, Warnings and precautions)

  • EphedrinesympathomimeticMinor

    Examples: α-adrenergic antagonists, β-adrenergic receptor antagonists, reserpine, quinidine, mephentermine Other Drug Interactions G u anethidine C linical Impact: Ephedrine may inhibit the neuron blockage produced by guanethidine, resulting in loss of antihypertensive effectiveness. (Ephedrine label, Drug interactions)

  • In addition to discontinuation of the drug, diuretic therapy may be required. (Esterified estrogens and methyltestosterone label, Warnings)

  • Finasteride5-alpha reductase inhibitorMinor

    …clinical studies with acetaminophen, acetylsalicylic acid, α-blockers, angiotensin-converting enzyme (ACE) inhibitors, analgesics, anti-convulsants, beta-adrenergic blocking agents, diuretics, calcium channel blockers, cardiac nitrates, HMG-CoA reductase inhibitors, nonsteroidal anti-inflammatory drugs (NSAIDs), benzodiazepines, H 2 antagonists and quinolone anti-infectives… (Finasteride label, Drug interactions)

  • FlecainideantiarrhythmicMinor

    Flecainide acetate has been used in a large number of patients receiving diuretics without apparent interaction. (Flecainide label, Drug interactions)

  • FlunisolidecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • FluocinonidecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • FluticasonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • HalobetasolcorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • HydrocortisonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • ACE Inhibitors FIRAZYR is a bradykinin B2 receptor antagonist and thereby has the potential to have a pharmacodynamic interaction with ACE inhibitors where FIRAZYR may attenuate the antihypertensive effect of ACE inhibitors. (Icatibant label, Drug interactions)

  • ImatinibCYP3A4 inhibitorMinor

    Weigh patients regularly and manage unexpected rapid weight gain by drug interruption and diuretics. (Imatinib label, Warnings and precautions)

  • Postmarketing cases of edema and fluid retention occurring within weeks of starting OPSUMIT, some requiring intervention with a diuretic or hospitalization for decompensated heart failure, have been reported [see Adverse Reactions (6.2) ] . (Macitentan label, Warnings and precautions)

  • MagnesiumVitamin and mineralMinor

    Long-term use of loop and thiazide diuretics increases magnesium loss in urine. (NIH Office of Dietary Supplements, Magnesium)

  • MethylprednisolonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • MethyltestosteroneandrogenMinor

    In addition to discontinuation of the drug, diuretic therapy may be required. (Methyltestosterone label, Warnings)

  • MexiletineantiarrhythmicMinor

    In a large compassionate use program mexiletine has been used concurrently with commonly employed antianginal, antihypertensive, and anticoagulant drugs without observed interactions. (Mexiletine label, Drug interactions)

  • MometasonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • Nortriptylinetricyclic antidepressantMinor

    The antihypertensive action of guanethidine and similar agents may be blocked. (Nortriptyline label, Warnings)

  • Olopatadine and mometasoneantihistamineMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • Penicillin Gpenicillin antibioticMinor

    These drugs include: aspirin, phenylbutazone, sulfonamides, indomethacin, thiazide diuretics, furosemide and ethacrynic acid. (Penicillin G label, Drug interactions)

  • Piperacillin and tazobactampenicillin antibioticMinor

    Periodic electrolyte determinations should be performed in patients with low potassium reserves, and the possibility of hypokalemia should be kept in mind with patients who have potentially low potassium reserves and who are receiving cytotoxic therapy or diuretics. (Piperacillin and tazobactam label, Warnings and precautions)

  • PotassiumVitamin and mineralMinor

    Loop and thiazide diuretics increase potassium loss; supplementation is sometimes prescribed alongside them. (NIH Office of Dietary Supplements, Potassium)

  • PrednisolonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • PrednisonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • Protriptylinetricyclic antidepressantMinor

    Protriptyline may block the antihypertensive effect of guanethidine or similarly acting compounds. (Protriptyline label, Warnings)

  • TerbinafineantifungalMinor

    There is no information available from adequate drug-drug interaction studies with the following classes of drugs: oral contraceptives, hormone replacement therapies, hypoglycemics, phenytoins, thiazide diuretics, and calcium channel blockers. (Terbinafine label, Drug interactions)

  • TriamcinolonecorticosteroidMinor

    Corticosteroids, ACTH - intensified electrolyte depletion, particularly hypokalemia. (Chlorothiazide label, Drug interactions)

  • ZincVitamin and mineralMinor

    Thiazide diuretics increase zinc loss in urine with long-term use. (NIH Office of Dietary Supplements, Zinc)

No significant interaction reported (2)

  • PamidronatebisphosphonateNo interaction

    Loop Diuretics Concomitant administration of a loop diuretic had no effect on the calcium-lowering action of pamidronate disodium. (Pamidronate label, Drug interactions)

  • Ropiniroledopamine agonistNo interaction

    Commonly Administered Drugs: Population analysis showed that commonly administered drugs (e.g., selegiline, amantadine, tricyclic antidepressants, benzodiazepines, ibuprofen, thiazides, antihistamines, anticholinergics) did not affect the clearance of ropinirole. (Ropinirole label, Drug interactions)

Check Chlorothiazide against everything you take. Add your full list; every pair is checked at once.

Open in the checker

Not medical advice. Severity reflects the label's wording, not your circumstances. A "major" flag can be routine under supervision and a "minor" one can matter at high doses. Ask a pharmacist.