Warfarin
210 interactions 9 explained in plain English
Also sold as:
Coumadin
Jantoven
Medically reviewed by
Dr. Brian Staiger, PharmD, BCPS
· Updated Jul 4, 2026
· Editorial policy
· Data sources
Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →
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Warfarin Flurbiprofen Ophthalmic Ocufen An increased risk of bleeding Details Warfarin Fondaparinux Arixtra An increased risk of bleeding Details Warfarin Fondaparinux Injection Arixtra An increased risk of bleeding Details Warfarin Gatifloxacin Ophthalmic Zymar® An increased risk of bleeding Details Warfarin Gemcitabine Avgemsi An increased risk of bleeding Details Warfarin Gemcitabine Injection Avgemsi An increased risk of bleeding Details Warfarin Gemfibrozil Lopid An increased risk of bleeding Details Warfarin Gemifloxacin Factive An increased risk of bleeding Details Warfarin Glucagon Injection Baqsimi An increased risk of bleeding Details Warfarin Glucagon Injection / Solution Baqsimi An increased risk of bleeding Details Warfarin Glucagon Nasal Powder Baqsimi An increased risk of bleeding Details Warfarin Heparin An increased risk of bleeding Details Warfarin Heparin Injection Lipo-Hepin® An increased risk of bleeding Details Warfarin Hydrocortisone Ala-Cort Inhibition of response to warfarin and an increased risk of bleeding Details Warfarin Hydrocortisone Injection A-Hydrocort® Inhibition of response to warfarin and an increased risk of bleeding Details Warfarin Ibrutinib Imbruvica Increased risk of bleeding Details Warfarin Ibuprofen Addaprin An increased risk of bleeding Details Warfarin Iloprost Aurlumyn An increased risk of bleeding Details Warfarin Interferon Alfa-2B Injection Intron A® Increased warfarin exposure and an increased INR Details Warfarin Ketoconazole Topical Extina® Foam Increased warfarin exposure, an increased INR and an increased risk of bleeding Details Warfarin Ketoprofen Actron® An increased risk of bleeding Details Warfarin Ketorolac Acular An increased risk of bleeding Details Warfarin Ketorolac Injection Acular An increased risk of bleeding Details Warfarin Ketorolac Nasal Spray Sprix An increased risk of bleeding Details Warfarin Ketorolac Ophthalmic Acular An increased risk of bleeding Details Warfarin Lecanemab-Irmb Injection Leqembi An increased risk of amyloid related imaging abnormalities (ARIA), or intracerebral hemorrhage Details Warfarin Leflunomide Arava Increased risk of bleeding Details Warfarin Letermovir Injection Prevymis Altered (increased or reduced) warfarin exposure and an altered INR Details Warfarin Levocarnitine Increased INR Details Warfarin Levofloxacin Levaquin An increased risk of bleeding Details Warfarin Levofloxacin Injection Levaquin An increased risk of bleeding Details Warfarin Levonorgestrel After banger Altered warfarin exposure, reduced or increased anticoagulant effectiveness and altered INR Details Warfarin Levonorgestrel Intrauterine System Kyleena Altered warfarin exposure, reduced or increased anticoagulant effectiveness and altered INR Details Warfarin Linezolid Injection Zyvox Increased INR Details Warfarin Mechlorethamine Topical Valchlor Increased risk for elevated INR and subsequent bleeding Details Warfarin Meclofenamate Meclodium® An increased risk of bleeding Details Warfarin Mefenamic Acid Ponstel® An increased risk of bleeding Details Warfarin Megestrol Megace® An increased risk of bleeding Details Warfarin Meloxicam Alloxate An increased risk of bleeding Details Warfarin Meloxicam Injection Alloxate An increased risk of bleeding DetailsNo interactions on this page match that filter — try the next page or clear the filter.
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