Sulfamethoxazole + Trimethoprim Injection (Brand Name: TMP/SMX, Co-trimoxazole, Bactrim, Cotrim, Septra, Sulfatrim) Patient’s weight: kilograms pounds Mild to moderate infection: 8 to 12 mg TMP/kg/day IV divided BID (Max 160 mg TMP/dose) Dose based on Trimethoprim component