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Jonesboro, AR
A 21-year-old female asked:

Sulfamethoxazole how long does it take to leave system?

1 doctor answer1 doctor weighed in
Dr. James Ferguson
Pediatrics 47 years experience
A day or so: The time for 1/2 to leave your system is listed as 10 hours, followed by 10 hours for half the remainder & so on.By the end of a day or so it is at minimal levels.

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Tunnel Hill, GA
A 24-year-old female asked:

How long does it take for sulfamethoxazole to get out of your system?

1 doctor answer3 doctors weighed in
Dr. Richard Williams
Pharmacy 19 years experience
Depends: I hate giving that type of answer but unfortunately it is appropriate here. In general it would take approximately anywhere from 18 hours to 2 1/2 -3 days. If you have kidney failure it would be longer. This is based on the drug's "half life" - the time it takes for half the drug to leave the body.
Last updated May 7, 2013

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