Sulfamethoxazole 800mg ... pancreatitis, photosensitivity, drug fever, rash (may be serious, eg, Stevens-Johnson syndrome, toxic epidermal necrolysis, drug reaction with eosinophilia and systemic ...

Sulfamethoxazole 400mg ... see full labeling. History of drug-induced immune thrombocytopenia with use of trimethoprim and/or sulfonamides. Megaloblastic anemia due to folate deficiency.

A new approach to antibiotics is sorely needed because many common drugs are losing their punch, Wencewicz said. He points to Bactrim, a combination of the drugs sulfamethoxazole and trimethoprim.