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You can check all know interactions of drugs yourself with the website http://www.drugs.com/drug_interactions.php. Simply type in the drugs you wish to find and select the correct drug from the dropdown menu. All known interactions will then appear.

---- Interactions searched:

* warfarin * alcohol (ethanol) ---- 1 Interaction found:

* warfarin and ethanol (Moderate Drug-Drug) PROBLEM: Enhanced hypoprothrombinemic response to warfarin has been reported in patients with acute alcohol intoxication and/or liver disease. The proposed mechanisms are inhibition of warfarin metabolism and decreased synthesis of clotting factors. Binge drinking may exacerbate liver impairment and its metabolic ability in patients with liver dysfunction. The risk of bleeding may be increased. Conversely, reductions in INR/PT have also been reported in chronic alcoholics with liver disease. The proposed mechanism is that continual drinking of large amounts of alcohol induces the hepatic metabolism of anticoagulants. Effects are highly variable and significant INR/PT fluctuations are possible.

POSSIBLE SOLUTION: Patients taking oral anticoagulants should be counseled to avoid large amounts of ethanol, but moderate consumption (one to two drinks per day) are not likely to affect the response to the anticoagulant in patients with normal liver function. Frequent INR/PT monitoring is recommended, especially if alcohol intake changes considerably. It may be advisable to avoid oral anticoagulant therapy in patients with uncontrollable drinking problems. Patients should be advised to promptly report any signs of bleeding to their doctor, including pain, swelling, headache, dizziness, weakness, prolonged bleeding from cuts, increased menstrual flow, nosebleeds, bleeding of gums from brushing, unusual bleeding or bruising, red or brown urine, or red or black stools.

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14y ago
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15y ago

Coumadin is a very sensitive drug- that is, it is affected by many outside influences. Ethanol (drinking alcohol), not only increases the risk of stomach bleeding while on coumadin, but it also increases or decreases the metabolism of coumadin, leading to a very dangerous increase or decrease in coumadin blood levels. Unless you know EXACTLY how ethanol works on your individual liver enzymes, drinking alcohol while on coumadin is not recommended.

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12y ago

Yes, you can drink Ensure (or Boost or any food supplement) with your Coumadin as long as you take Ensure in normal amount, without any excess. Your dosage will be ajusted with this food intake.

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12y ago

I do, and it hasn't done any harm. But I do not drink a lot. I'm on 6mg Coumadin a day.

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Q: Can you drink alchol whilst on warfarin?
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