Possibly: Trimethoprim is a component of the antibiotic bactrim (sulfamethoxazole and trimethoprim) and is often used to treat urinary tract infection. Occasionally it may not be effective so if you have been prescribed the antibiotic and the symptoms persist, the antibiotic may need to be changed. Do not start any antibiotics without first being evaluated to assess the need. Inappropriate use of antibiotics can lead to antibiotic resistan
Answered 11/16/2014
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Yes...: Its combination with sulfa makes it a more effective agent to treat UTI.
Answered 10/30/2017
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