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What happens if I miss a dose (Coumadin, Jantoven)?

Take the missed dose as soon as you remember, and call your doctor as soon as possible. Do not take two doses at the same time to make up a missed dose.

What happens if I overdose (Coumadin, Jantoven)?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose can cause excessive bleeding.

What should I avoid while taking warfarin (Coumadin, Jantoven)?

Ask your doctor before taking any medicine for pain, arthritis, fever, or swelling. This includes acetaminophen (Tylenol), aspirin, celecoxib (Celebrex), ibuprofen (Advil, Motrin), diclofenac (Cataflam, Voltaren), indomethacin (Indocin), naproxen (Aleve, Naprosyn), piroxicam (Feldene), and others. These medicines may affect blood clotting and may also increase your risk of stomach bleeding.

Do not eat large amounts of foods high in vitamin K (such as liver, leafy green vegetables or vegetable oils). Vitamin K can make warfarin less effective. Avoid making any changes in your diet without first talking to your doctor.

Avoid eating cranberries, drinking cranberry juice, or taking cranberry herbal products. Avoid herbal teas that contain tonka beans, sweet clover, or sweet woodruff.

Drinking alcohol can increase certain side effects of warfarin.

What other drugs will affect warfarin (Coumadin, Jantoven)?

Warfarin can interact with certain herbal (botanical) products, which can increase your risk of bleeding. Do not use any of the following products without first asking your doctor:

• bromelains;
• coenzyme Q10;
• cranberry;
• danshen;
• dong quai;
• garlic;
• ginkgo biloba;
• ginseng; or
• St. John's wort.

Where can I get more information?

Your pharmacist can provide more information about warfarin.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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