Warfarin is an anticoagulant. It is used to prevent the formation of clots in heart disease or after heart surgery, especially after the surgical installation of a prosthetic heart valve.
Warfarin works by blocking the action of vitamin K, a fat soluble compound that is necessary for blood clotting and is naturally found in fresh root vegetables, fruit, seeds, dairy products and meat.
Warfarin should not be taken during pregnancy because it may cause birth defects. Risks include bone and hand abnormalities, intrauterine growth retardation (IUGR), central nervous system abnormalities and eye abnormalities.
Common brand names
Common side effects
Warfarin passes into breastmilk and should not be used while breastfeeding.
Warfarin blocks the anticoagulation properties of foods rich in vitamin K. These include:
Some foods also have anticlotting properties that can overpromote the effects of the drugs. Avoid foods such as:
Alcohol may promote or diminish the effects of warfarin. Limit your alcohol intake to one drink a day while using the drug.
Consult your doctor before taking this drug if you have a history of any of the following:
Consult your doctor before taking warfarin if you are taking any of the following drugs, medications or supplements:
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