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A member asked:

Im on 1 weeks course of trimethoprim 200mg would this affect my pill in any way?

A doctor has provided 1 answer

Bactrim (sulfamethoxazole and trimethoprim) and OCs: Some antibiotics may reduce the efficacy of oral contraceptives. Bactrim (sulfamethoxazole and trimethoprim) (trimethoprim-sulfamethoxazole) is not one known to have much, if any effect. However, it's not a bad idea to use additional protection while you are taking the antibiotic.

Answered 6/28/2016

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Related Questions

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Will my pill still work if I have taken trimethoprim for my cyistits?

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How less effective is the morning after pill while taking sulfameth/trimethoprim ?

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A member asked:

Hi docs, would my pill (cerazette) still work if i've taken trimethoprim for my cystitis at the same time?

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A member asked:

I was prescribed cipro and trimethoprim at the same time. For UTI. Never beed prescribed 2 antibiotics at the same time. Each to be taken 1 pill every 12 hours. Is it normal practice? Can i even take them together or its some kind of mistake?

A doctor has provided 1 answer

A member asked:

Im on the third week of my bc pills and last night i was diagnosed with a UTI and given bactrim (sulfamethoxazole and trimethoprim). There was blood when i wiped. Could it be the bactrim (sulfamethoxazole and trimethoprim)?

4 doctors weighed in across 2 answers

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