Warfarin

Warfarin: Main Image

Warfarin is an anticoagulant (slows blood clotting) used to prevent and treat people with venous thrombosis (blood clots in the veins) and pulmonary embolism (blood clots in the lungs). Warfarin is also used to treat or prevent dangerous blood clotting in people with atrial fibrillation (an irregularity in heartbeat) and, in some cases, to prevent stroke.

Summary of Interactions with Vitamins, Herbs, & Foods

dnicon_BeneficialMay Be Beneficial: Depletion or interference—This medication may deplete these substances from the body or interfere with how they work; extra intake may help replenish them.

none

dnicon_BeneficialMay Be Beneficial: Side effect reduction and/or prevention—These substances may help reduce the likelihood and/or severity of a potential side effect caused by the medication.

none

dnicon_BeneficialMay Be Beneficial: Supportive interaction—These substances may help this medication work better.

none

dnicon_AvoidAvoid: Reduces drug effectiveness—When taking this medication, avoid these substances as they may decrease the medication's absorption and/or activity in the body.

Co-Enzyme Q10

Vitamin C

Green Tea*

Iron*

Magnesium*

St. John’s Wort*

Zinc*

dnicon_AvoidAvoid: Adverse interaction—When taking this medication, avoid these substances, as the combination may cause undesirable or dangerous interactions.

American Ginseng

Cranberry

Dan Shen

Grapefruit Seed Extract

Reishi

Asian Ginseng*

Devil’s Claw*

Dong Quai*

Fenugreek*

Garlic*

Ginger*

Ginkgo*

Goji Berry*

Horse Chestnut*

Papain*

Quilinggao*

Red Clover*

Sweet Clover*

Sweet Woodruff*

Vitamin D*

dnicon_CheckCheck: Explanation needed—When taking this medication, read the article details and discuss them with your doctor or pharmacist before taking these substances.

Alcohol Consumption

Bromelain

Eleuthero

Olestra

Soya

Vitamin C

Vitamin K

High-Protein, Low-Carbohydrate Diet*

An asterisk (*) next to an item in the summary indicates that the interaction is supported only by weak, fragmentary, and/or contradictory scientific evidence.

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over-the-counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2011.