Cilostazol interactions

Cilostazol (Pletal), an antiplatelet agent has 73 documented interactions across the FDA labels and fact sheets we index: 15 major, 55 moderate, 3 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 (15)

  • ApixabananticoagulantMajor

    …hematomas in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as nonsteroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants • a history of traumatic or repeated epidural or spinal punctures • a history of spinal deformity or spinal surgery • optimal timing between… (Apixaban label, Boxed warning)

  • CelecoxibNSAIDMajor

    Celecoxib 100 mg twice daily was non-inferior to naproxen 375 to 500 mg twice daily and ibuprofen 600 to 800 mg three times daily for the composite endpoint of the Antiplatelet Trialists' Collaboration (APTC), which consists of cardiovascular death (including hemorrhagic death), non-fatal myocardial infarction, and non-fatal stroke [ see Clinical Studies (14.5)… (Celecoxib label, Warnings and precautions)

  • Clarithromycinmacrolide antibioticMajor

    Co-administration of these phosphodiesterase inhibitors with clarithromycin is not recommended. (Clarithromycin label, Drug interactions)

  • DabigatrananticoagulantMajor

    …hematomas in these patients include: use of indwelling epidural catheters concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants a history of traumatic or repeated epidural or spinal punctures a history of spinal deformity or spinal surgery optimal timing between the… (Dabigatran label, Boxed warning)

  • EdoxabananticoagulantMajor

    …hematomas in these patients include: use of indwelling epidural catheters concomitant use of other drugs that affect hemostasis, such as nonsteroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants a history of traumatic or repeated epidural or spinal punctures a history of spinal deformity or spinal surgery optimal timing between the… (Edoxaban label, Boxed warning)

  • EnoxaparinanticoagulantMajor

    …hematomas in these patients include: Use of indwelling epidural catheters Concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, and other anticoagulants A history of traumatic or repeated epidural or spinal punctures A history of spinal deformity or spinal surgery Optimal timing between… (Enoxaparin label, Boxed warning)

  • FondaparinuxanticoagulantMajor

    …in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, or other anticoagulants • a history of traumatic or repeated epidural or spinal puncture • a history of spinal deformity or spinal surgery • Optimal timing between… (Fondaparinux label, Boxed warning)

  • Isosorbide dinitratenitrateMajor

    Do not use Isosorbide Dinitrate in patients who are taking certain drugs for erectile dysfunction (phosphodiesterase inhibitors), such as sildenafil, tadalafil, or vardenafil. (Isosorbide dinitrate label, Contraindications)

  • Isosorbide dinitrate and hydralazinenitrateMajor

    Phosphodiesterase Inhibitors Isosorbide dinitrate and hydralazine hydrochloride tablets are contraindicated in patients who are using a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5), PDE5 inhibitors such as avanafil, sildenafil, vardenafil, and tadalafil have been shown to potentiate the hypotensive effects… (Isosorbide dinitrate and hydralazine label, Drug interactions)

  • Do not use isosorbide mononitrate in patients who are taking certain drugs for erectile dysfunction (phosphodiesterase inhibitors), such as sildenafil, tadalafil, or vardenafil. (Isosorbide mononitrate label, Contraindications)

  • Itraconazoleazole antifungalMajor

    Anticoagulants and Antiplatelets Ticagrelor Contraindicated during and 2 weeks after TOLSURA treatment. (Itraconazole label, Drug interactions)

  • Nirmatrelvir and ritonavirantiviralMajor

    Cardiovascular agents aliskiren, ticagrelor, vorapaxar clopidogrel ↑ aliskiren ↑ ticagrelor ↑ vorapaxar ↓ clopidogrel active metabolite Avoid concomitant use with PAXLOVID. cilostazol ↑ cilostazol Dosage adjustment of cilostazol is recommended. (Nirmatrelvir and ritonavir label, Drug interactions)

  • RiociguatvasodilatorMajor

    Phosphodiesterase Inhibitors Concomitant administration of Adempas with specific PDE-5 inhibitors (such as sildenafil, tadalafil, or vardenafil) or nonspecific PDE-5 inhibitors (such as dipyridamole or theophylline) is contraindicated [see Dosage and Administration (2.6), Drug Interactions ( 7.1 ) and Clinical Pharmacology ( 12.2 )]. (Riociguat label, Contraindications)

  • RivaroxabananticoagulantMajor

    …in these patients include: • use of indwelling epidural catheters • concomitant use of other drugs that affect hemostasis, such as non-steroidal anti-inflammatory drugs (NSAIDs), platelet inhibitors, other anticoagulants • a history of traumatic or repeated epidural or spinal punctures • a history of spinal deformity or spinal surgery • optimal timing between… (Rivaroxaban label, Boxed warning)

  • Ticagrelorantiplatelet agentMajor

    WARNING: BLEEDING RISK • BRILINTA, like other antiplatelet agents, can cause significant, sometimes fatal bleeding ( 5.1 , 6.1 ). (Ticagrelor label, Boxed warning)

Moderate interactions (55)

  • AmiodaroneantiarrhythmicModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • AprepitantCYP3A4 inhibitorModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Cannabidiol (prescription)anticonvulsantModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • CenobamateanticonvulsantModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • CimetidineH2 blockerModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • CitalopramSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs, other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk. (Citalopram label, Warnings and precautions)

  • Clopidogrelantiplatelet agentModerate

    Other Antiplatelet Agents: Increases the risk of bleeding due to an additive effect. (Clopidogrel label, Drug interactions)

  • CyclosporineimmunosuppressantModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • DesvenlafaxineSNRIModerate

    • Increased Risk of Bleeding: Concomitant use of aspirin, NSAIDs, other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.4 ). (Desvenlafaxine label, Warnings and precautions)

  • DiclofenacNSAIDModerate

    Co-morbid conditions such as coagulation disorders or concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Diclofenac label, Warnings and precautions)

  • Diltiazemcalcium channel blockerModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • DronedaroneantiarrhythmicModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • DuloxetineSNRIModerate

    Concomitant use of antiplatelet drugs and anticoagulants may increase this risk ( 5.5 , 7.4 , 8.1 ) (Duloxetine label, Warnings and precautions)

  • Erythromycinmacrolide antibioticModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • EscitalopramSSRIModerate

    Increased Risk of Bleeding: Concomitant use of nonsteroidal anti-inflammatory drugs, aspirin, other antiplatelet drugs, warfarin and other anticoagulants may increase risk ( 5.7 , 7) (Escitalopram label, Warnings and precautions)

  • Esomeprazoleproton pump inhibitorModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • EverolimusimmunosuppressantModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Fluconazoleazole antifungalModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • FluvoxamineSSRIModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Ginkgo bilobaHerbal and supplementModerate

    Ginkgo may increase bleeding risk when taken with anticoagulant or antiplatelet medicines. (NCCIH, Ginkgo)

  • GrapefruitFood and drinkModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • HeparinanticoagulantModerate

    Platelet Inhibitors Drugs such as acetylsalicylic acid, dextran, phenylbutazone, ibuprofen, indomethacin, dipyridamole, hydroxychloroquine and others that interfere with platelet-aggregation reactions (the main hemostatic defense of heparinized patients) may induce bleeding and should be used with caution in patients receiving heparin sodium. (Heparin label, Drug interactions)

  • IbuprofenNSAIDModerate

    Co-morbid conditions such as coagulation disorder, concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Ibuprofen label, Warnings and precautions)

  • Icosapent ethylomega-3 fatty acidModerate

    Increased Bleeding Risk with Anticoagulants and Antiplatelet Agents: Some published studies with omega-3 fatty acids have demonstrated prolongation of bleeding time. (Icosapent ethyl label, Drug interactions)

  • ImatinibCYP3A4 inhibitorModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • IndomethacinNSAIDModerate

    Co-morbid conditions, such as coagulation disorders, or concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Indomethacin label, Warnings and precautions)

  • IsoniazidantibioticModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • IvacaftorCYP3A4 inhibitorModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Ketoconazoleazole antifungalModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • LevomilnacipranSNRIModerate

    Increased Risk of Bleeding : Concomitant use of NSAIDs, aspirin, other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.5 ). (Levomilnacipran label, Warnings and precautions)

  • MeloxicamNSAIDModerate

    Co-morbid conditions such as coagulation disorders or concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Meloxicam label, Warnings and precautions)

  • Mirabegronbeta-adrenergic agonistModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Misoprostolprostaglandin analogModerate

    Misoprostol does not exert clinically significant effects on the absorption, blood levels, and antiplatelet effects of therapeutic doses of aspirin. (Misoprostol label, Drug interactions)

  • NaproxenNSAIDModerate

    Concomitant use of warfarin and other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Naproxen label, Warnings and precautions)

  • Omeprazoleproton pump inhibitorModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • PalbociclibCYP3A4 inhibitorModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • ParoxetineSSRIModerate

    Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may add to this risk [see Drug Interactions ( 7.3 )] . (Paroxetine label, Warnings and precautions)

  • PentoxifyllinemethylxanthineModerate

    DRUG INTERACTIONS Bleeding has been reported in patients treated with pentoxifylline extended-release tablets with or without concomitant NSAIDs, anticoagulants, or platelet aggregation inhibitors. (Pentoxifylline label, Drug interactions)

  • PerampanelanticonvulsantModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • Phentermine and topiramateCNS stimulantModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • PhenytoinanticonvulsantModerate

    Carbamazepine, felbamate, lamotrigine, topiramate, oxcarbazepine, lacosamide Antilipidemic agents Atorvastatin, fluvastatin, simvastatin Antiplatelets Ticagrelor Antiviral agents Efavirenz, lopinavir/ritonavir, indinavir, nelfinavir, ritonavir, saquinavir Fosamprenavir: phenytoin when given with fosamprenavir alone may decrease the concentration of amprenavir,… (Phenytoin label, Drug interactions)

  • Posaconazoleazole antifungalModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • RanolazineQT-prolonging drugModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • RitonavirantiretroviralModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • SertralineSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.3 ) (Sertraline label, Warnings and precautions)

  • Sumatriptan and naproxentriptanModerate

    Co-morbid conditions such as coagulation disorders or concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. (Sumatriptan and naproxen label, Warnings and precautions)

  • Suvorexantsedative-hypnoticModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • TopiramateanticonvulsantModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • TrazodoneantidepressantModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.5 ). (Trazodone label, Warnings and precautions)

  • Verapamilcalcium channel blockerModerate

    Inhibitors of CYP3A4 or CYP2C19 Inhibitors of CYP3A4 Coadministration of strong (e.g., ketoconazole) and moderate (e.g., erythromycin, diltiazem and grapefruit juice) CYP3A4 inhibitors can increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • VilazodoneSSRIModerate

    Increased Risk of Bleeding: Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), other antiplatelet drugs, warfarin, and other anticoagulants may increase this risk ( 5.3 ) (Vilazodone label, Warnings and precautions)

  • Vitamin EVitamin and mineralModerate

    Vitamin E can inhibit platelet aggregation and vitamin K-dependent clotting, increasing bleeding risk with anticoagulant and antiplatelet drugs. (NIH Office of Dietary Supplements, Vitamin E)

  • Voriconazoleazole antifungalModerate

    Strong and moderate CYP3A4 and CYP2C19 inhibitors: Increase exposure to cilostazol. (Cilostazol label, Drug interactions)

  • VortioxetineantidepressantModerate

    • Increased Risk of Bleeding : Concomitant use of aspirin, nonsteroidal anti-inflammatory drugs, other antiplatelet drugs, warfarin, or other drugs that affect coagulation may increase risk ( 5.3 ). (Vortioxetine label, Warnings and precautions)

  • WarfarinanticoagulantModerate

    …montelukast, moricizine, omeprazole, phenobarbital, phenytoin, cigarette smoking CYP3A4 alprazolam, amiodarone, amlodipine, amprenavir, aprepitant, atorvastatin, atazanavir, bicalutamide, cilostazol, cimetidine, ciprofloxacin, clarithromycin, conivaptan, cyclosporine, darunavir/ritonavir, diltiazem, erythromycin, fluconazole, fluoxetine, fluvoxamine, fosamprenavir, imatinib,… (Warfarin label, Drug interactions)

Minor mentions (3)

  • EthosuximideanticonvulsantMinor

    If possible, assess the presence of drug-dependent antiplatelet antibodies. (Ethosuximide label, Warnings)

  • Fish oil (omega-3)Herbal and supplementMinor

    Omega-3 supplements may mildly prolong bleeding time; the combination with anticoagulants such as warfarin warrants monitoring, though clinically significant bleeding has not been consistently shown. (NIH Office of Dietary Supplements, Omega-3 Fatty Acids)

  • Garlic (supplement)Herbal and supplementMinor

    Garlic supplements may increase bleeding risk with anticoagulants such as warfarin. (NCCIH, Garlic)

Check Cilostazol 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.