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A member asked:
How long does bactrim (sulfamethoxazole and trimethoprim) stay in your blood stream?
A doctor has provided 1 answer
2-4 days: The half life of a drug is the amount of time it takes for half the drug to be eliminated from the body. The half life of sulfa and trimethoprim vary from 10 to 20 hours. Complete elimination is considered after 5 half lives. 5 half lives for Bactrim (sulfamethoxazole and trimethoprim) would be 50 to 100 hours.
Answered 6/13/2018
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Related Questions
A member asked:
Just finished bactrim (sulfamethoxazole and trimethoprim) from sinus infection. Will this effect upcoming annual routine blood/urine tests i need done? Or how long should I wait?
A doctor has provided 1 answer
A member asked:
Small pimple on groin for 4 days...grew and became painful and very red...on bactrim (sulfamethoxazole and trimethoprim) now in case it's staph...is it rare to spread to blood.scared?
4 doctors weighed in across 2 answers
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