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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is There Interaction Between Coumadin And Marijuana?

Hi, I recently got a blood clot and are currently on Coumadin (9mg once a day) and I am worried about something. I was going to smoke weed but I was worried that the doctor would notice the change in my INR levels. Also worried if there are any negative affects from it? Thanks!
Mon, 2 May 2016
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General & Family Physician,  's  Response
Hi
There are no documented interactions between coumadin and marijuana/cannabis and smoking weed shouldn't affect your INR
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Is There Interaction Between Coumadin And Marijuana?

Hi There are no documented interactions between coumadin and marijuana/cannabis and smoking weed shouldn t affect your INR