I took one bactrim for a UTI and have been pumping my breastmilk and tossing it. Wanted to know when it is safe to breastfeed my baby again
I realize this answer may be a bit late ...
The mean serum half-lives of sulfamethoxazole and trimethoprim are 10 and 8 to 10 hours, respectively.
It takes 5.5 x half life's for a medicine to be totally eliminated from ones system. Therefore if using the maximum hours as half life, it would take 55 hours (5.5 x 10 hours) at least before Bactrim is eliminated from your system ... so approximately 2.5 days.
- Bactrim Information for Consumers
- Bactrim Information for Healthcare Professionals (includes dosage details)
- Side Effects of Bactrim (detailed)
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