Prescription

Antibiotic (Sulfonamide combination)

Sulfamethoxazole; Trimethoprim

Last reviewed April 2026

Who is this for?

What is this drug?

Sulfamethoxazole/Trimethoprim (commonly called Co-trimoxazole or Septrin) is a combination antibiotic that contains two medicines working together to kill bacteria by blocking two different steps they need to grow and multiply.

What is it used for?

Urinary tract infections (urine infections)typhoidear infectionschest infections (bronchitispneumonia)diarrhea caused by bacteriaskin infectionsand prevention of infections in people with weak immune systems including HIV patients

Prescription Required

A doctor's prescription is required to obtain this drug legally.

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