A member asked:

How long should i stop smoking marijuana before general anesthesia?

9 doctors weighed in across 2 answers
Dr. Eric Levin answered

Specializes in Psychiatry

Despite legalization and differing opinions unless for a medical reason, and still i suggest caution, do not use pot. It is far from refined and controlled. The amount of thc must be low and cannabinoids standardized and then further tested before considered safe from a neurotransmitter point of view. How often do you use benadryl (diphenhydramine)? Pot and Benadryl (diphenhydramine) can cause cognitive problems. Dec bcp effect ?

Answered Apr 27, 2018

4.5k views

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Dr. Pamela Pappas answered

Specializes in Psychiatry

Would now be good for you? Smoking anything is giving your lungs extra toxins to deal with, not to mention brain effects of marijuana. Depending on frequency of use, your urine could be positive for several months -- but you want to be as healthy and clear as you can be, before general anesthesia.

Answered Oct 6, 2020

4.5k views

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How long before surgery must one stop using alcohol, smoking and marijuana?

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