Ofloxacin interactions

Ofloxacin (Floxin, Ocuflox), a fluoroquinolone has 156 documented interactions across the FDA labels and fact sheets we index: 22 major, 113 moderate, 21 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.

Major interactions (22)

  • AlosetronMajor

    Concomitant administration of alosetron and moderate CYP1A2 inhibitors, including quinolone antibiotics and cimetidine, has not been evaluated, but should be avoided unless clinically necessary because of similar potential drug interactions. (Alosetron label, Drug interactions)

  • AmiodaroneantiarrhythmicMajor

    Reserve the combination of amiodarone with other antiarrhythmic therapies that prolong the QTc to patients with life-threatening ventricular arrhythmias who are incompletely responsive to a single agent. (Amiodarone label, Warnings and precautions)

  • • that mineral supplements, vitamins with iron or minerals, calcium-, aluminum- or magnesium-based antacids, sucralfate or didanosine chewable/buffered tablets or the pediatric powder for oral solution should not be taken within the two-hour period before or within the two-hour period after taking ofloxacin (see Drug Interactions ) • that ofloxacin can be taken… (Ofloxacin label, Precautions)

  • Azithromycinmacrolide antibioticMajor

    This risk which can be fatal should be considered in patients with certain cardiovascular disorders including known QT prolongation or history torsades de pointes, those with proarrhythmic conditions, and with other drugs that prolong the QT interval. (Azithromycin label, Warnings and precautions)

  • CiprofloxacinfluoroquinoloneMajor

    Click here to enter Contraindications Known hypersensitivity to ciprofloxacin or other quinolones ( 4.1 , 5.6, 5.7 ) (Ciprofloxacin label, Contraindications)

  • DofetilideantiarrhythmicMajor

    Use with Drugs that Prolong QT Interval and Antiarrhythmic Agents The use of dofetilide in conjunction with other drugs that prolong the QT interval has not been studied and is not recommended. (Dofetilide label, Warnings)

  • Fluconazoleazole antifungalMajor

    Coadministration of other drugs known to prolong the QT interval and which are metabolized via the enzyme CYP3A4 such as erythromycin, pimozide, and quinidine are contraindicated in patients receiving fluconazole. (Fluconazole label, Contraindications)

  • FosfomycinantibioticMajor

    Avoid co-administration of CONTEPO with drugs known to prolong the QT interval. (Fosfomycin label, Drug interactions)

  • HydroxychloroquineQT-prolonging drugMajor

    Therefore, PLAQUENIL is not recommended in patients taking other drugs that have the potential to prolong the QT interval. (Hydroxychloroquine label, Warnings and precautions)

  • IloperidoneantipsychoticMajor

    Avoid the use of FANAPT in combination with any other drugs that prolong the QT interval [see Warnings and Precautions (5.3) ] . (Iloperidone label, Drug interactions)

  • IvabradineMajor

    Bradycardia may increase the risk of QT prolongation which may lead to severe ventricular arrhythmias, including torsade de pointes, especially in patients with risk factors such as use of QTc prolonging drugs [see Adverse Reactions ( 6.2 )] . (Ivabradine label, Warnings and precautions)

  • LevofloxacinfluoroquinoloneMajor

    Levofloxacin in 5% Dextrose Injection is contraindicated in persons with known hypersensitivity to levofloxacin, or other quinolone antibacterials [see Warnings and Precautions (5.3) ]. (Levofloxacin label, Contraindications)

  • MirtazapineantidepressantMajor

    Examples diazepam, alprazolam, alcohol Drugs that Prolong QTc Interval Clinical Impact The concomitant use of other drugs which prolong the QTc interval with REMERON/REMERONSolTab, increase the risk of QT prolongation and/or ventricular arrhythmias (e.g., Torsades de Pointes). (Mirtazapine label, Drug interactions)

  • MoxifloxacinfluoroquinoloneMajor

    Known hypersensitivity to moxifloxacin or other quinolones. (Moxifloxacin label, Contraindications)

  • PhenobarbitalbarbiturateMajor

    Drugs that Prolong the QT Interval : Avoid concomitant use. (Phenobarbital label, Drug interactions)

  • PitolisantQT-prolonging drugMajor

    The use of WAKIX should be avoided in patients with known QT prolongation or in combination with other drugs known to prolong the QT interval [see Drug Interactions ( 7.1 )]. (Pitolisant label, Warnings and precautions)

  • PropafenoneantiarrhythmicMajor

    • Avoid use with other antiarrhythmic agents or drugs that prolong the QT interval. (Propafenone label, Warnings and precautions)

  • SertralineSSRIMajor

    Avoid the concomitant use of drugs known to prolong the QTc interval. (Sertraline label, Drug interactions)

  • Sodium bicarbonateantacidMajor

    • that mineral supplements, vitamins with iron or minerals, calcium-, aluminum- or magnesium-based antacids, sucralfate or didanosine chewable/buffered tablets or the pediatric powder for oral solution should not be taken within the two-hour period before or within the two-hour period after taking ofloxacin (see Drug Interactions ) • that ofloxacin can be taken… (Ofloxacin label, Precautions)

  • • that mineral supplements, vitamins with iron or minerals, calcium-, aluminum- or magnesium-based antacids, sucralfate or didanosine chewable/buffered tablets or the pediatric powder for oral solution should not be taken within the two-hour period before or within the two-hour period after taking ofloxacin (see Drug Interactions ) • that ofloxacin can be taken… (Ofloxacin label, Precautions)

  • TetrabenazineVMAT2 inhibitorMajor

    Certain conditions may increase the risk for torsade de pointes or sudden death such as (1) bradycardia; (2) hypokalemia or hypomagnesemia; (3) concomitant use of other drugs that prolong the QTc interval; and (4) presence of congenital prolongation of the QT interval [see Warnings and Precautions ( 5.8 ), Clinical Pharmacology (12.2) ]. (Tetrabenazine label, Drug interactions)

  • ZiprasidoneantipsychoticMajor

    …drugs, ziprasidone is contraindicated: • in patients with a known history of QT prolongation (including congenital long QT syndrome) • in patients with recent acute myocardial infarction • in patients with uncompensated heart failure Pharmacokinetic/pharmacodynamic studies between ziprasidone and other drugs that prolong the QT interval have not been performed. (Ziprasidone label, Contraindications)

Moderate interactions (113)

  • AcarboseantidiabeticModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Allopurinolxanthine oxidase inhibitorModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • ApixabananticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • AspirinNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • Aspirin and dipyridamoleantiplatelet agentModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • AzelastineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • BeclomethasonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • BetamethasonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • BudesonidecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • Budesonide and formoterolcorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • BuprenorphineopioidModerate

    The risk of combining buprenorphine with other QT-prolonging agents is not known. (Buprenorphine label, Warnings and precautions)

  • Buprenorphine and naloxoneopioidModerate

    The risk of combining buprenorphine with other QT-prolonging agents is not known. (Buprenorphine and naloxone label, Warnings and precautions)

  • Butalbital, acetaminophen, and caffeinebarbiturateModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • CalciumVitamin and mineralModerate

    Calcium binds these drugs in the gut and can sharply cut how much is absorbed; separate the doses. (NIH Office of Dietary Supplements, Calcium)

  • CanagliflozinSGLT2 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • CelecoxibNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • CetirizineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • ChlorpheniramineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • CitalopramSSRIModerate

    Avoid use of Citalopram Capsules in patients with congenital long QT syndrome, bradycardia, hypokalemia or hypomagnesemia, recent acute myocardial infarction, or uncompensated heart failure and patients taking other drugs that prolong the QTc interval. (Citalopram label, Warnings and precautions)

  • ClobetasolcorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • CyclosporineimmunosuppressantModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • DabigatrananticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • DapagliflozinSGLT2 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • DesonidecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • DexamethasonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • DiclofenacNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • Digoxindigitalis glycosideModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • Diltiazemcalcium channel blockerModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • DimenhydrinateantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • DiphenhydramineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • DoxylamineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • DronedaroneantiarrhythmicModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • DulaglutideGLP-1 receptor agonistModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • DuloxetineSNRIModerate

    Other drugs that inhibit CYP1A2 metabolism include cimetidine and quinolone antimicrobials such as ciprofloxacin and enoxacin [see Warnings and Precautions ( 5.12 )] . (Duloxetine label, Drug interactions)

  • EdoxabananticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • EmpagliflozinSGLT2 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Empagliflozin and metforminSGLT2 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • EnoxaparinanticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • EpinephrinesympathomimeticModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • Esmololbeta blockerModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • EtodolacNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • ExenatideGLP-1 receptor agonistModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Febuxostatxanthine oxidase inhibitorModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • FentanylopioidModerate

    …prolonged QT interval, 3) treatment with Class 1 and Class III antiarrhythmics, 4) treatment with monoamine oxidase inhibitors (MAOI's), 5) concomitant treatment with other drug products known to prolong the QT interval and 6) electrolyte imbalance, in particular hypokalemia and hypomagnesemia, or concomitant treatment with drugs (e.g., diuretics) that may cause electrolyte… (Fentanyl label, Warnings and precautions)

  • FexofenadineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • FlecainideantiarrhythmicModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • FludrocortisonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • FluocinonidecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • FluoxetineSSRIModerate

    Use with caution in combination with other drugs that prolong the QT interval ( 4.2 , 5.11 , 7.7 , 7.8 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) [See Dosage and Administration ( 2.9 , 2.10 ), Contraindications ( 4.1 ), and Warnings and Precautions ( 5.2 )] . (Fluoxetine label, Drug interactions)

  • FluticasonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • Fluticasone and salmeterolcorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • FondaparinuxanticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • Formoterolbeta-adrenergic agonistModerate

    …Antidepressants, QTc Prolonging Drugs Formoterol, as with other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. (Formoterol label, Drug interactions)

  • GlimepiridesulfonylureaModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • GlipizidesulfonylureaModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • GlyburidesulfonylureaModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Glyburide and metforminsulfonylureaModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • HalobetasolcorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • HaloperidolantipsychoticModerate

    Concomitant use of HALDOL DECANOATE with other products that prolong the QTc interval may result in a greater increase in the QTc interval, and adverse reactions associated with QTc interval prolongation, including torsade de pointes, other serious arrythmias, and sudden death [see Warnings and Precautions (5.2) ]. (Haloperidol label, Drug interactions)

  • HeparinanticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • HydrocortisonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • HydroxyzineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • IbuprofenNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • IndomethacinNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • Insulin aspartinsulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Insulin degludecinsulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Insulin detemirinsulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Insulin glargineinsulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Insulin lisproinsulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Insulin regular (human)insulinModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • IronVitamin and mineralModerate

    Iron binds these drugs in the gut and reduces their absorption; separate the doses. (NIH Office of Dietary Supplements, Iron)

  • KetorolacNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • LevocetirizineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • Lidocainelocal anestheticModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • Lidocaine and prilocainelocal anestheticModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • LinagliptinDPP-4 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • LiraglutideGLP-1 receptor agonistModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Lofexidinealpha-adrenergic agonistModerate

    Risk of QT Prolongation : Lofexidine tablets prolong the QT interval. (Lofexidine label, Warnings and precautions)

  • LoratadineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • MagnesiumVitamin and mineralModerate

    Magnesium-containing supplements and antacids reduce absorption of these drugs; separate the doses by at least two hours. (NIH Office of Dietary Supplements, Magnesium)

  • MeclizineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • MeloxicamNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • MetforminbiguanideModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • MethylprednisolonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • MetronidazoleantibioticModerate

    Drugs that Prolong the QT Interval QT prolongation has been reported, particularly when metronidazole was administered with drugs with the potential for prolonging the QT interval. (Metronidazole label, Drug interactions)

  • MometasonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • MycophenolateimmunosuppressantModerate

    Examples Cyclosporine A, trimethoprim/sulfamethoxazole, bile acid sequestrants (cholestyramine), rifampin as well as aminoglycoside, cephalosporin, fluoroquinolone and penicillin classes of antimicrobials Drugs Modulating Glucuronidation Clinical Impact Concomitant use with drugs inducing glucuronidation decreases MPA systemic exposure, potentially reducing MYHIBBIN… (Mycophenolate label, Drug interactions)

  • NabumetoneNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • NaproxenNSAIDModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • OlopatadineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • PaliperidoneantipsychoticModerate

    …combination with other drugs that are known to prolong QTc including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications, antipsychotic medications (e.g., chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval. (Paliperidone label, Warnings and precautions)

  • PentoxifyllinemethylxanthineModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • PioglitazonethiazolidinedioneModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Pioglitazone and metforminthiazolidinedioneModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • PrednisolonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • PrednisonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • PromethazineantihistamineModerate

    Serious acute hypersensitivity reactions may require treatment with epinephrine and other resuscitative measures, including oxygen, intravenous fluids, antihistamines, corticosteroids, pressor amines, and airway management, as clinically indicated (see PRECAUTIONS and ADVERSE REACTIONS ). (Ofloxacin label, Warnings)

  • QuetiapineantipsychoticModerate

    …Class 1A antiarrythmics (e.g., quinidine, procainamide) or Class III antiarrythmics (e.g., amiodarone, sotalol), antipsychotic medications (e.g., ziprasidone, chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval (e.g., pentamidine, levomethadyl acetate, methadone). (Quetiapine label, Warnings and precautions)

  • RepaglinidemeglitinideModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • RifampinantibioticModerate

    Decrease exposure Digitoxin Decrease exposure Fluoroquinolones Pefloxacin Administered with rifampin 900 mg daily Decrease exposure Moxifloxacin , Decrease exposure Oral Hypoglycemic Agents (e.g., sulfonylureas) Glyburide Decrease exposure Rifampin may worsen glucose control of glyburide. (Rifampin label, Drug interactions)

  • RivaroxabananticoagulantModerate

    Warfarin Some quinolones have been reported to enhance the effects of the oral anticoagulant warfarin or its derivatives. (Ofloxacin label, Drug interactions)

  • SemaglutideGLP-1 receptor agonistModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • SitagliptinDPP-4 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Sitagliptin and metforminDPP-4 inhibitorModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • Sotalolbeta blockerModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • Sumatriptan and naproxentriptanModerate

    Non Steroidal Anti-Inflammatory Drugs The concomitant administration of a non-steroidal anti-inflammatory drug with a quinolone, including ofloxacin, may increase the risk of CNS stimulation and convulsive seizures (see WARNINGS and PRECAUTIONS , General ). (Ofloxacin label, Drug interactions)

  • TheophyllinemethylxanthineModerate

    Theophylline Steady-state theophylline levels may increase when ofloxacin and theophylline are administered concurrently. (Ofloxacin label, Drug interactions)

  • TirzepatideGLP-1 receptor agonistModerate

    Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia, usually in diabetic patients receiving concomitant treatment with an oral hypoglycemic agent (e.g., glyburide) or with insulin. (Ofloxacin label, Warnings)

  • TriamcinolonecorticosteroidModerate

    The risk of developing fluoroquinolone-associated tendinitis and tendon rupture is increased in patients over 60 years of age, in those taking corticosteroid drugs, and in patients with kidney, heart or lung transplants. (Ofloxacin label, Warnings)

  • Umeclidinium and vilanterolanticholinergicModerate

    …like other beta 2 -agonists, should be administered with extreme caution to patients being treated with monoamine oxidase inhibitors, tricyclic antidepressants, or drugs known to prolong the QTc interval or within 2 weeks of discontinuation of such agents, because the effect of adrenergic agonists on the cardiovascular system may be potentiated by these agents. (Umeclidinium and vilanterol label, Drug interactions)

  • Verapamilcalcium channel blockerModerate

    Ofloxacin should be avoided in patients with known prolongation of the QT interval, patients with uncorrected hypokalemia, and patients receiving Class IA (quinidine, procainamide), or Class III (amiodarone, sotalol) antiarrhythmic agents. (Ofloxacin label, Precautions)

  • WarfarinanticoagulantModerate

    This may result in a prolonged half-life for some drugs that are also metabolized by this system (e.g., cyclosporine, theophylline/methylxanthines, warfarin) when coadministered with quinolones. (Ofloxacin label, Drug interactions)

  • ZincVitamin and mineralModerate

    Zinc reduces absorption of quinolone and tetracycline antibiotics; take the antibiotic at least two hours before or four to six hours after zinc. (NIH Office of Dietary Supplements, Zinc)

Minor mentions (21)

  • Bempedoic acidOATP1B1 inhibitorMinor

    Tendon rupture may occur more frequently in patients over 60 years of age, in those taking corticosteroid or fluoroquinolone drugs, in patients with renal failure, and in patients with previous tendon disorders. (Bempedoic acid label, Warnings and precautions)

  • ButorphanolopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • CaffeineFood and drinkMinor

    Caffeine Interactions between ofloxacin and caffeine have not been detected. (Ofloxacin label, Drug interactions)

  • CimetidineH2 blockerMinor

    Cimetidine Cimetidine has demonstrated interference with the elimination of some quinolones. (Ofloxacin label, Drug interactions)

  • CodeineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • EluxadolineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • Finasteride5-alpha reductase inhibitorMinor

    …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 without evidence of clinically significant adverse interactions. (Finasteride label, Drug interactions)

  • Hydrocodone and acetaminophenopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • HydromorphoneopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • LevorphanolopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • MeperidineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • MethadoneopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • MorphineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • NalbuphineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • OliceridineopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • OxycodoneopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • Oxycodone and acetaminophenopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • OxymorphoneopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • Pentazocine and naloxoneopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • TapentadolopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

  • TramadolopioidMinor

    Interaction With Laboratory or Diagnostic Testing Some quinolones, including ofloxacin, may produce false-positive urine screening results for opiates using commercially available immunoassay kits. (Ofloxacin label, Precautions)

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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.