Bactrim (Sulfamethoxazole/Trimethoprim) is an antibiotic combination used to treat or prevent infections. Bactrim is a synthetic antibacterial combination product available in DS (double strength) tablets. How to use Use Bactrim as directed by your doctor. Ask your health care provider any questions you may have about how to use Bactrim. Drug Class and Mechanism Bactrim… Continue reading Bactrim General Information