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A 53-year-old female asked:

Is it the codeine turning to morphine in co codamol that makes you drowsy ?

1 doctor answer1 doctor weighed in
Dr. Bruce Jacobs
Specializes in Family Medicine
Codeine and its meta: bolites can make you drowsy, as well as conversion to morphine that can make you drowsy. So there are multiple chemicals from breakdown of codeine that can make you drowsy.
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Last updated Jul 12, 2016
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