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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Is The Duration For Which Marijuana Will Persist In The System?

Hello, I was wondering if marijuana would still be in your system after 28 days.
Here are the details.. i used to smoke every day in february-april I stopped smoking for about three weeks in april then smoked about 3 more times then stopped again for 28 days and I have been drinking a lot of water and exercising..
posted on Fri, 14 Mar 2014
Twitter Sun, 4 Sep 2016 Answered on
Twitter Tue, 6 Sep 2016 Last reviewed on
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Addiction Medicine Specialist 's  Response
Difficult to say. The experience with marijuana testing comes from only one scientific paper as far as I can tell, and the very non-scientific information that patients give us. We find that in heavy daily smokers, marijuana can pop up here and there in urine testing more than 1 month after stopping.
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What Is The Duration For Which Marijuana Will Persist In The System?

Difficult to say. The experience with marijuana testing comes from only one scientific paper as far as I can tell, and the very non-scientific information that patients give us. We find that in heavy daily smokers, marijuana can pop up here and there in urine testing more than 1 month after stopping.