Does Bactrim effect your menstrual cycles?


I took a short term of Bactrim, only 3 days. I know that you need to use a backup method of birth control, which I have been doing ever since. I did have unprotected sex with my partner the day before I started it but that is it.

I am concerned because I am on birth control and always get my period on the Tuesday after I finish my pack and I never did. I took a pregnancy test which was negative but I am still very worried.

Does Bactrim effect my menses at all?

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Can you be physically active while on tetracycline and bactrim DS antibiotics?

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I am on Bactrim for a UTI. I think I now have developed strep. Will the bactrim I am on treat it?


I have been on Bactrim for a UTI now for 4 days. I think I now have strep. I have a sore throat, white patches, ear pain and pain when swallowing. Will the Bactrim treat it or do I need a new antibiotic?

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Would Pyridium, Cephalexin, and Bactrim used for UTI’s cause a false positive pregnancy test?


I took them for 10 days and got a positive pregnancy test about 10 days after I stopped taking them.
Pyridium is a painkiller for UTI’s and Cephalexin and Bactrim are antibiotics.

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How long does it usually take for symptoms to begin going away after you start taking an antibiotic?(Bactrim)?

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In the medication bactrim, is there any sulfer in it?


I am taking the medication, methatrexate and was told by my doctor not to take bactrim, I have been taking MSM, It has sulfer in it. does bactrim have sulfer in it?
Is there a difference in Sulfa and Sulfer?
Is there a difference in Sulfa and Sulfer?

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can you take flagyl antibiotic and bactrim antibiotic at the same time?


i need to take both of these antibiotics and am wondering if it is safe to take them both at the same time?

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