People's Pharmacy

Warfarin

Other Brand Names: Coumadin

Revised:4/1/2000

Table of Contents

Taking the Medicine

Although the absorption of Coumadin may be slightly slowed by food, the medicine can be taken at meal time, especially if it upsets your stomach. There are, however, certain foods that may reduce the effectiveness of this drug.

Because Vitamin K can counteract Coumadin's action, be careful not to overdo on foods that are rich in this nutrient.

These include broccoli, cabbage, spinach, collard greens, kale, brussels sprouts and lettuce. This doesn't mean that you must avoid such healthy vegetables, but don't suddenly increase your intake without careful monitoring of prothrombin time.

The same warning would hold if you suddenly dropped one of these from your diet completely.