Sulfamethoxazole and trimethoprim

Generic name: sulfamethoxazole and trimethoprim (oral/injection) [ SUL-fa-meth-OX-a-zole-and-trye-METH-oh-prim ]
Brand names: Bactrim, Bactrim DS, SMZ-TMP DS, Sulfatrim Pediatric, Septra, ... show all 18 brands Sulfatrim, Bethaprim, Cotrim, Uroplus, Uroplus DS, Cotrim DS, Septra I.V., Bactrim I.V., Bactrim Pediatric, Bethaprim Pediatric, Sulfatrim Suspension, Cotrim Pediatric, Septra DS
Dosage forms: intravenous solution (80 mg-16 mg/mL); oral suspension (200 mg-40 mg/5 mL); oral tablet (400 mg-80 mg; 800 mg-160 mg)
Drug class:Sulfonamides

Medically reviewed by Drugs.com on Aug 30, 2021. Written by Cerner Multum.

What is sulfamethoxazole and trimethoprim?

Sulfamethoxazole and trimethoprim is a combination antibiotic used to treat ear infections, urinary tract infections, bronchitis, traveler's diarrhea, shigellosis, and Pneumocystis jiroveci pneumonia.

Sulfamethoxazole and trimethoprim may also be used for purposes not listed in this medication guide.

Warnings

Use only as directed. Tell your doctor if you use other medicines or have other medical conditions or allergies.

Before taking this medicine

You should not use sulfamethoxazole and trimethoprim if you are allergic to sulfamethoxazole or trimethoprim, or if you have:

• severe