A 52-year-old female asked:
How long does it take to get top effect from codeine?
1 doctor answer • 1 doctor weighed in
Dentistry 19 years experience
An hour or so: It starts to take affect in about half an hour and peaks in a couple of hours. Stays around for about 4-5 hrs.
1.7k viewsAnswered >2 years ago
Last updated Feb 5, 2016
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