A member asked:

I am on 1/2 a tablet of bactrim (sulfamethoxazole and trimethoprim) ds taken twice daily for prostatitus. why do i need to avoid sun exposure when on bactrim (sulfamethoxazole and trimethoprim)? how much is too much sun?

A doctor has provided 1 answer

Photosensitvity: Bactrim (sulfamethoxazole and trimethoprim) is a sulfa antibiotic which makes you photosensitive and may cause rashes or a sunburn easily while on it. This can occur even with less than 30 minutes of sun exposure for some people. Wear sunscreen and sun protective clothing and stay out of the sun as much as possible while on bactrim (sulfamethoxazole and trimethoprim).

Answered 9/28/2016

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