What you need to know about Drug interactions with warfarin (Coumadin®)

Medication interactions with warfarin (Coumadin®) Many drugs interfere with warfarin. Make sure you notify all of your health care providers that you are taking warfarin so they will know which medications can be prescribed for you. It is also important to notify your VA Coumadin Clinic with any changes in your medications or prior to starting any new medications. How should I store my warfarin (Coumadin®) Keep your warfarin in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from light. Over the counter medications You may take these nonprescription medications with warfarin (Coumadin®): acetaminophen (Tylenol®) Chlor-Trimeton® Contac® Drixoril® *Maalox® *Mylanta® Robitussin® Cough Syrup Sudafed® Tylenol Cold and Sinus® You may not take these nonprescription medications with warfarin (Coumadin®) without your health care provider’s approval: Alka-Seltzer® aspirin (Bayer®, Bufferin®, Ecotrin®) Excedrin® ibuprofen (Advil®, Motrin®) Naproxen (Naprosyn®, Aleve®) Nyquil Cold® Pepto-Bismol® *Note: If you use antacids, such as Maalox® or Mylanta®, take them at least two hours before or two hours after taking your warfarin. Potential interactions between herbs and warfarin (Coumadin®) Angelica Root Arnica Flower Anise Asafoetida Bogbean Borage Seed Oil Bromelain Capsicum Celery Chamomile Clove Co-enzyme Q10 Cranberry Juice Dandelion Danshen Devil’s Claw Dong Quai Fenugreek Feverfew Garlic Ginger Ginko Ginseng Goldenseal Green Tea Horse Chestnut Licorice Root Lovage Root Meadowsweet Onion Papain Parsley Passionflower Poplar Quassia Red Clover Rue St. John’s Wart Sweet Clover Sweet Woodruff Tonka Beans Turmeric Vitamin E Willow Bark Yarrow Common prescription drug interactions with warfarin (Coumadin®) Alcohol Antianxiety drugs Antiarrhythmics amiodarone      (Cordarone®) Anticonvulsants phenytoin (Dilantin®) carbamazepine      (Tegretol®) Antibiotics penicillin ciprofloxacin trimethoprim/     sulfamethoxazole      (Bactrim®) Antidepressants Antigout drugs allopurinol      (Zyloprim®) Antineoplastics cancer drugs Antiplatelet drugs clopidogrel (Plavix®) ticlopidine (Ticlid®) Antithyroid drugs levothyroxine      (Levothroid®,      Synthroid®) Beta-Adrenergic Blockers propranolol (Inderal®) Diabetes drugs (Oral) Diuretics furosemide (Lasix®) Gastrointestinal cimetidine (Tagamet®) omeprazole      ( Prilosec®) Hypolipidemics simvastatin (Zocor®) atorvastatin (Lipitor®) Narcotics hydrocodone      (Lortab®, Vicodin®) Steroids prednisone VA Coumadin Clinics Albany (518) 626-5000 Bath (607) 664-4465 Canandaigua (585) 393-7137 Rochester (585) 463-2699 Syracuse (315) 425-2615 VA Western NY Healthcare System Buffalo Pharmacist (716) 862-7212 Patients A-L (716) 862-8764 Patients M-Z (716) 862-8763 Batavia (585) 297-1110

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