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A member asked:
How long does it take for bactrim (sulfamethoxazole and trimethoprim) to leave your system?
A doctor has provided 1 answer
5 days: The half life of sulfa and trimethoprim vary from 10 to 20 hours. 5 half lives for almost complete elimination so 50 to 100 hours.
Answered 9/13/2018
5.5k views
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