What are the long term effects of bactrim (sulfamethoxazole and trimethoprim) / septra?

Bactrim (sulfamethoxazole and trimethoprim): The answer can be found here: http://www.Nlm.Nih.Gov/medlineplus/druginfo/meds/a684026.Html also, chronic use of antibiotics can lead to the development of resistant strains of bacteria. It can also lead to overgrowth of other types of bacteria that are not sensitive to bactrim (sulfamethoxazole and trimethoprim).