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A member asked:
I have taken bactrim (sulfamethoxazole and trimethoprim) 800 ds twice a day for 10 days for cellulitis. how long after the last dose will this antibiotic stay in my system?
7 doctors weighed in across 2 answers
2-3 days: The half life of the medication is about 10 hours and it should be completely eliminated from your body in about 2-3 days
Answered 2/7/2020
3.1k views
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Half life 10 hrs: Level of Bactrim (sulfamethoxazole and trimethoprim) drops by half every 10 hours so approximately 2 to 3 days
Answered 2/7/2020
3.1k views
Thank
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