Methyldopa interactions

Methyldopa (Aldomet), an antihypertensive has 244 documented interactions across the FDA labels and fact sheets we index: 17 major, 141 moderate, 86 minor, and 0 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 (17)

  • 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)

  • Deferasiroxiron supplementMajor

    Coadministration of methyldopa with ferrous sulfate or ferrous gluconate is not recommended. (Methyldopa label, Drug interactions)

  • Deferiproneiron supplementMajor

    Coadministration of methyldopa with ferrous sulfate or ferrous gluconate is not recommended. (Methyldopa label, Drug interactions)

  • 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)

  • Ferric citratephosphate binderMajor

    Coadministration of methyldopa with ferrous sulfate or ferrous gluconate is not recommended. (Methyldopa label, Drug interactions)

  • • Hyaluronidase should not be used to enhance the absorption and dispersion of dopamine and/or alpha agonist drugs ( 7.2 ) (Hyaluronidase label, Drug interactions)

  • IronVitamin and mineralMajor

    Coadministration of methyldopa with ferrous sulfate or ferrous gluconate is not recommended. (Methyldopa label, Drug interactions)

  • IsoniazidantibioticMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa label, Contraindications)

  • LinezolidantibioticMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa label, Contraindications)

  • Methylene blueMAO inhibitorMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa 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)

  • PhenelzineMAO inhibitorMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa label, Contraindications)

  • RasagilineMAO inhibitorMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa label, Contraindications)

  • SelegilineMAO inhibitorMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa 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)

  • TranylcypromineMAO inhibitorMajor

    CONTRAINDICATIONS Methyldopa is contraindicated in patients: – with active hepatic disease, such as acute hepatitis and active cirrhosis. – with liver disorders previously associated with methyldopa therapy (see WARNINGS ). – with hypersensitivity to any component of this product. – on therapy with monoamine oxidase (MAO) inhibitors. (Methyldopa label, Contraindications)

Moderate interactions (141)

  • • Hypertension : Patients taking some antihypertensive medications may have impaired response to these therapies when taking NSAIDs. (Acetaminophen and ibuprofen label, Warnings and precautions)

  • 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)

  • 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)

  • Articaine and epinephrinelocal anestheticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • 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)

  • Atenololbeta blockerModerate

    Because of its relative beta 1 selectivity, however, TENORMIN may be used with caution in patients with bronchospastic disease who do not respond to, or cannot tolerate, other antihypertensive treatment. (Atenolol label, Warnings)

  • Atenolol and chlorthalidonebeta blockerModerate

    Because of its relative beta 1 -selectivity, however, atenolol and chlorthalidone may be used with caution in patients with bronchospastic disease who do not respond to or cannot tolerate, other antihypertensive treatment. (Atenolol and chlorthalidone 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)

  • Azelastine and fluticasoneantihistamineModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • BeclomethasonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • The thiazide component of Lotensin HCT may potentiate the action of other antihypertensive drugs, especially ganglionic or peripheral adrenergic-blocking drugs. (Benazepril and hydrochlorothiazide label, Warnings)

  • BenzphetamineCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • BetamethasonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Bisoprololbeta blockerModerate

    Because of its relative beta 1 -selectivity, however, BISOPROLOL FUMARATE may be used with caution in patients with bronchospastic disease who do not respond to, or who cannot tolerate other antihypertensive treatment. (Bisoprolol label, Warnings)

  • Because of the relative beta 1 -selectivity of bisoprolol fumarate, bisoprolol fumarate and hydrochlorothiazide tablets may be used with caution in patients with bronchospastic disease who do not respond to, or who cannot tolerate other antihypertensive treatment. (Bisoprolol and hydrochlorothiazide 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)

  • If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • BudesonidecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Budesonide and formoterolcorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Bumetanideloop diureticModerate

    Antihypertensives Bumetanide may potentiate the effect of various antihypertensive drugs, necessitating a reduction in the dosage of these drugs. (Bumetanide label, Drug interactions)

  • Bupivacaine and epinephrinelocal anestheticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • 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

    Interaction with Drugs Metabolized by COMT Drugs known to be metabolized by COMT, such as isoproterenol, epinephrine, norepinephrine, dopamine, dobutamine, alpha-methyldopa, apomorphine, isoetherine, and bitolterol should be administered with caution in patients receiving entacapone regardless of the route of administration (including inhalation), as their interaction… (Carbidopa, levodopa, and entacapone label, Warnings and precautions)

  • 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)

  • Carvedilolbeta blockerModerate

    COREG may be used with caution, however, in patients who do not respond to, or cannot tolerate, other antihypertensive agents. (Carvedilol label, Warnings and precautions)

  • CelecoxibNSAIDModerate

    Intervention: During concomitant use of VYSCOXA with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions (5.6) ]. (Celecoxib label, Drug interactions)

  • Chlorothiazidethiazide diureticModerate

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

  • Chlorthalidonethiazide diureticModerate

    Effect of chlorthalidone on other drugs Chlorthalidone may add to or potentiate the action of other antihypertensive drugs. (Chlorthalidone label, Drug interactions)

  • CiclesonidecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • ClobetasolcorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Cyclobenzaprinemuscle relaxantModerate

    …concomitant use of TONMYA with: MAO inhibitors may be life-threatening [see Contraindications (4) ] , Alcohol, barbiturates, and other CNS depressants may increase the risk of adverse reactions associated with these drugs, Tramadol may increase the seizure risk, Guanethidine or other similar acting drugs may block the antihypertensive action of these drugs. (Cyclobenzaprine label, Drug interactions)

  • CyclosporineimmunosuppressantModerate

    If hypertension persists, the dose of Neoral should be further reduced or blood pressure should be controlled with antihypertensive agents. (Cyclosporine label, Precautions)

  • DeflazacortcorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Desfluranegeneral anestheticModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • DesonidecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • DexamethasonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • DexmethylphenidateCNS stimulantModerate

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

  • DiclofenacNSAIDModerate

    Intervention: During concomitant use of ZIPSOR with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions ( 5.6 ) ]. (Diclofenac label, Drug interactions)

  • Intervention: During concomitant use of diclofenac sodium/misoprostol with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions (5.7) ] . (Diclofenac and misoprostol label, Drug interactions)

  • DiethylpropionCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • DobutaminesympathomimeticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • DroxidopasympathomimeticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa 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)

  • EntacaponeModerate

    Therefore, drugs known to be metabolized by COMT, such as isoproterenol, epinephrine, norepinephrine, dopamine, dobutamine, alpha-methyldopa, apomorphine, isoetherine, and bitolterol should be administered with caution in patients receiving entacapone regardless of the route of administration (including inhalation), as their interaction may result in increased… (Entacapone label, Warnings)

  • EphedrinesympathomimeticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • EpinephrinesympathomimeticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • Eplerenonealdosterone antagonistModerate

    The administration of other potassium-sparing antihypertensives with NSAIDs has been shown to reduce the antihypertensive effect in some patients and result in severe hyperkalemia in patients with impaired renal function. (Eplerenone 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)

  • 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)

  • Etomidategeneral anestheticModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • FenoprofenNSAIDModerate

    Intervention: During concomitant use of FENOPROFEN CALCIUM with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions ( 5.6 ) ]. (Fenoprofen label, Drug interactions)

  • FludrocortisonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • FlunisolidecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • FluocinonidecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • FlurbiprofenNSAIDModerate

    Intervention: During concomitant use of flurbiprofen with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions (5) ]. (Flurbiprofen label, Drug interactions)

  • FluticasonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Fluticasone and salmeterolcorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • The thiazide component of fosinopril sodium and hydrochlorothiazide may potentiate the action of other antihypertensive drugs, especially ganglionic or peripheral adrenergic-blocking drugs. (Fosinopril and hydrochlorothiazide label, Warnings)

  • Furosemideloop diureticModerate

    Monitor for changes in blood pressure and adjust the dose of other antihypertensive drugs if needed. (Furosemide label, Drug interactions)

  • HalobetasolcorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • During concomitant use of hydrocodone bitartrate and ibuprofen tablets with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects (see WARNINGS: Renal Toxicity and Hyperkalemia ). (Hydrocodone and ibuprofen label, Drug interactions)

  • HydrocortisonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • IbuprofenNSAIDModerate

    Intervention: During concomitant use of CALDOLOR with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions ( 5.6 ) ]. (Ibuprofen label, Drug interactions)

  • Intervention: During concomitant use of ibuprofen and famotidine tablet with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions ( 5.7 )] . (Ibuprofen and famotidine 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)

  • Indapamidethiazide diureticModerate

    Drug Interactions Other Antihypertensives: Indapamide may add to or potentiate the action of other antihypertensive drugs. (Indapamide label, Drug interactions)

  • IndomethacinNSAIDModerate

    Monitor patients to assure diuretic efficacy including antihypertensive effects ( 7 ) (Indomethacin label, Drug interactions)

  • Isofluranegeneral anestheticModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • Isoproterenolbeta-adrenergic agonistModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • KetamineCNS depressantModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • Lidocaine and epinephrinelocal anestheticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • When a diuretic is added to the therapy of a patient receiving lisinopril, an additional antihypertensive effect is usually observed (see DOSAGE AND ADMINISTRATION ). (Lisinopril and hydrochlorothiazide label, Drug interactions)

  • Lithiumserotonergic drugModerate

    When methyldopa and lithium are given concomitantly, the patient should be carefully monitored for symptoms of lithium toxicity. (Methyldopa label, Drug interactions)

  • 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

    The action of Mecamylamine HCl may be potentiated by anesthesia, other antihypertensive drugs and alcohol. (Mecamylamine label, Drug interactions)

  • Mefenamic acidNSAIDModerate

    Intervention: During concomitant use of mefenamic acid with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions ( 5.6 )] . (Mefenamic acid label, Drug interactions)

  • MeloxicamNSAIDModerate

    Intervention: During concomitant use of QAMZOVA with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [ see Warnings and Precautions ( 5.6 ) ]. (Meloxicam label, Drug interactions)

  • MethamphetamineCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • MethohexitalbarbiturateModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • MethylphenidateCNS stimulantModerate

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

  • MethylprednisolonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Midodrinealpha-adrenergic agonistModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • Mirabegronbeta-adrenergic agonistModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • MirtazapineantidepressantModerate

    REMERON/REMERONSolTab should be used with caution in patients with known cardiovascular or cerebrovascular disease that could be exacerbated by hypotension (history of myocardial infarction, angina, or ischemic stroke) and conditions that would predispose patients to hypotension (dehydration, hypovolemia, and treatment with antihypertensive medication). (Mirtazapine label, Warnings and precautions)

  • ModafinilCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • MometasonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • NaproxenNSAIDModerate

    ( 5.3 Hepatotoxicity) Hypertension: Patients taking some antihypertensive medications may have impaired response to these therapies when taking NSAIDs. (Naproxen label, Warnings and precautions)

  • Intervention : During concomitant use of naproxen and esomeprazole magnesium delayed-release tablets with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions (5.6) ]. (Naproxen and esomeprazole label, Drug interactions)

  • NiacinModerate

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

  • Nifedipinedihydropyridine calcium channel blockerModerate

    Other Diuretics, PDE5 inhibitors, alpha-methyldopa: Nifedipine may increase the blood pressure lowering effect of these concomitantly administered agents. (Nifedipine label, Drug interactions)

  • 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)

  • NitroglycerinnitrateModerate

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

  • 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)

  • Olopatadine and mometasoneantihistamineModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • OxaprozinNSAIDModerate

    Intervention: During concomitant use of OXAPROZIN CAPSULES with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see WARNINGS AND PRECAUTIONS (5.6) ]. (Oxaprozin label, Drug interactions)

  • OxymetazolinedecongestantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa 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)

  • PazopanibModerate

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

  • 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)

  • PhendimetrazineCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • PhentermineCNS stimulantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • PhenylephrinedecongestantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • PiroxicamNSAIDModerate

    Monitor patients to assure diuretic efficacy including antihypertensive effects (7) (Piroxicam label, Drug interactions)

  • Prazosinalpha blockerModerate

    Syncopal episodes have usually occurred within 30 to 90 minutes of the initial dose of the drug; occasionally, they have been reported in association with rapid dosage increases or the introduction of another antihypertensive drug into the regimen of a patient taking high doses of prazosin hydrochloride capsules. (Prazosin label, Warnings)

  • PrednisolonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • PrednisonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Prilocaine and epinephrinelocal anestheticModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • PropofolCNS depressantModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • PseudoephedrinedecongestantModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • 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)

  • The thiazide component of quinapril and hydrochlorothiazide tablets may potentiate the action of other antihypertensive drugs, especially ganglionic or peripheral adrenergic- blocking drugs. (Quinapril and hydrochlorothiazide label, Warnings)

  • 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)

  • Sevofluranegeneral anestheticModerate

    Patients may require reduced doses of anesthetics when on methyldopa. (Methyldopa label, Drug interactions)

  • 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)

  • SorafenibModerate

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

  • Spironolactone and hydrochlorothiazidealdosterone antagonistModerate

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

  • Monitor patients to assure diuretic efficacy including antihypertensive effects. (Sumatriptan and naproxen 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)

  • Terazosinalpha blockerModerate

    Risk of Hypotension with Concomitant Use of Other Antihypertensive Agents and Phospodiesterase Type 5 Inhibitors (PDE5-I): Concomitant administration of TEZRULY with antihypertensives or phosphodiesterase-5 (PDE-5) inhibitors can result in additive blood pressure lowering effects and symptomatic hypotension (5.3). (Terazosin label, Warnings and 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)

  • TrazodoneantidepressantModerate

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

  • TriamcinolonecorticosteroidModerate

    If not, corticosteroids may be given and other causes of anemia should be considered. (Methyldopa label, Warnings)

  • Triamterene and hydrochlorothiazidepotassium-sparing diureticModerate

    Thiazides may add to or potentiate the action of other antihypertensive drugs. (Triamterene and hydrochlorothiazide label, Drug interactions)

  • VardenafilPDE5 inhibitorModerate

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

  • VasopressinModerate

    Drugs Suspected of Causing SIADH Use with drugs suspected of causing SIADH (e.g., SSRIs, tricyclic antidepressants, haloperidol, chlorpropamide, enalapril, methyldopa, pentamidine, vincristine, cyclophosphamide, ifosfamide, felbamate) may increase the pressor effect in addition to the antidiuretic effect of Vasostrict ® . (Vasopressin label, Drug interactions)

  • VenlafaxineSNRIModerate

    Metoprolol: Possibly reduced blood-pressure lowering effect despite increased metoprolol plasma levels. (Venlafaxine label, Drug interactions)

  • Vibegronbeta-adrenergic agonistModerate

    If hypotension does occur during anesthesia, it usually can be controlled by vasopressors. (Methyldopa label, Drug interactions)

  • ZiprasidoneantipsychoticModerate

    Ziprasidone 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). (Ziprasidone label, Warnings and precautions)

Minor mentions (86)

  • Acebutololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • AliskirenantihypertensiveMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amiloridepotassium-sparing diureticMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amlodipinedihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amlodipine and atorvastatindihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amlodipine and benazeprildihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amlodipine and olmesartandihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Amlodipine and valsartandihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Azilsartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • BenazeprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Betaxololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • ButorphanolopioidMinor

    In such cases, butorphanol should be discontinued and the hypertension treated with antihypertensive drugs. (Butorphanol label, Warnings)

  • Candesartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Candesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • CaptoprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • ChlorpromazineantipsychoticMinor

    Chlorpromazine may counteract the antihypertensive effect of guanethidine and related compounds. (Chlorpromazine label, Warnings)

  • Clonidinealpha-adrenergic agonistMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Colestipolbile acid sequestrantMinor

    No depressant effect on blood levels in humans was noted when colestipol hydrochloride was administered with any of the following drugs: aspirin, clindamycin, clofibrate, methyldopa, nicotinic acid (niacin), tolbutamide, phenytoin or warfarin. (Colestipol label, Drug interactions)

  • Desipraminetricyclic antidepressantMinor

    This drug is capable of blocking the antihypertensive effect of guanethidine and similarly acting compounds. (Desipramine label, Warnings)

  • 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)

  • DextroamphetamineCNS stimulantMinor

    Antihypertensives Amphetamines may antagonize the hypotensive effects of antihypertensives. (Dextroamphetamine label, Drug interactions)

  • DiflunisalNSAIDMinor

    Drug Interactions ACE-inhibitors and Angiotensin II Anagonists Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors and angiotensin II antagonists. (Diflunisal label, Drug interactions)

  • Diltiazemcalcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Doxazosinalpha blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • EnalaprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • EnalaprilatACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Ethacrynic acidloop diureticMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • EtodolacNSAIDMinor

    Drug Interactions ACE-inhibitors Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. (Etodolac label, Drug interactions)

  • Felodipinedihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • FosinoprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Guanfacinealpha-adrenergic agonistMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • HydralazinevasodilatorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Hydrochlorothiazidethiazide diureticMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa 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)

  • Irbesartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Irbesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Isradipinedihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • KetoprofenNSAIDMinor

    ACE-inhibitors Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. (Ketoprofen label, Warnings and precautions)

  • KetorolacNSAIDMinor

    Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE inhibitors and/or angiotensin II receptor antagonists. (Ketorolac label, Drug interactions)

  • Labetalolbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • LisinoprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Lofexidinealpha-adrenergic agonistMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Losartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Losartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Metoprololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • 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)

  • MoexiprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • NabumetoneNSAIDMinor

    Drug Interactions: ACE-inhibitors: Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. (Nabumetone label, Drug interactions)

  • Nadololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Nebivololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Nicardipinedihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Nisoldipinedihydropyridine calcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • NitroprussidevasodilatorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Nortriptylinetricyclic antidepressantMinor

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

  • Olmesartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Olmesartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

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

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • PerindoprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Phenoxybenzaminealpha blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Pindololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • ProchlorperazineantipsychoticMinor

    Antihypertensive effects of guanethidine and related compounds may be counteracted when phenothiazines are used concomitantly. (Prochlorperazine label, Precautions)

  • Propranololbeta blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Protriptylinetricyclic antidepressantMinor

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

  • QuinaprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • RamiprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Hepatotoxic Drugs Clinical trials in ALS patients excluded patients on concomitant medications which were potentially hepatotoxic (e.g., allopurinol, methyldopa, sulfasalazine). (Riluzole label, Drug interactions)

  • Sacubitril and valsartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • SalsalateNSAIDMinor

    DRUG INTERACTIONS ACE-inhibitors Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors. (Salsalate label, Drug interactions)

  • Spironolactonealdosterone antagonistMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • SulindacNSAIDMinor

    Drug Interactions ACE-Inhibitors and Angiotensin II Antagonists Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE-inhibitors and angiotensin II antagonists. (Sulindac label, Drug interactions)

  • Telmisartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Telmisartan and amlodipineangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Telmisartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Tizanidinemuscle relaxantMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • The effect of tolcapone on the pharmacokinetics of other drugs of this class such as α-methyldopa, dobutamine, apomorphine, and isoproterenol has not been evaluated. (Tolcapone label, Drug interactions)

  • TolmetinNSAIDMinor

    DRUG INTERACTIONS ACE Inhibitors: Reports suggest that NSAIDs may diminish the antihypertensive effect of ACE Inhibitors. (Tolmetin label, Drug interactions)

  • Torsemideloop diureticMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • TrandolaprilACE inhibitorMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Triamterenepotassium-sparing diureticMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • TrifluoperazineantipsychoticMinor

    Antihypertensive effects of guanethidine and related compounds may be counteracted when phenothiazines are used concurrently. (Trifluoperazine label, Precautions)

  • Valsartanangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Valsartan and hydrochlorothiazideangiotensin II receptor blocker (ARB)Minor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

  • Verapamilcalcium channel blockerMinor

    Drug Interactions When methyldopa is used with other antihypertensive drugs, potentiation of antihypertensive effect may occur. (Methyldopa label, Drug interactions)

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

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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.