You should not take acetaminophen (Tylenol), aspirin, or NSAIDs (non-steroidal anti-inflammatory drugs) unless your doctor has told you to. NSAIDs include celecoxib (
Celebrex), diclofenac (Voltaren), ibuprofen (
Motrin, Advil), indomethacin, naproxen (Aleve, Naprosyn), piroxicam (Feldene), and others. These medicines may affect blood clotting and could cause serious bleeding in your stomach or intestines.
Avoid sudden changes in your diet. Vitamin K decreases the effects of Coumadin.