Effects of Marijuana On Coumadin

kata · Silver Member Joined: 29 Jul 2000 Posts: 242

My INR number has been steadily declining in the past few weeks and I have smoked some marijuana in the last few weeks and I was wondering how badly this could affect it. My thinks it is because of a prescription of penicillin I was taking. I have also been working out a lot and I am on coumadin. Maybe it is due marijuana effect on coumadin. Does anyone know?

kutcher · Newbie Joined: 21 Apr 2005 Posts: 14

I’m also on coumadin and the similar thing has been happening to me. I’ve looked for information and I have found that marijuana has no effect on coumadin unless you are eating the green leaf, then it would lower the INR. However, I couldn’t find any hard factson the subject. I just read opinions so far.

Effects of Marijuana On Coumadin

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