Antibiotic (Sulfonamide combination)
Last reviewed April 2026
Who is this for?
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.
Prescription Required
You need a doctor's prescription to buy this drug.
Is Sulfamethoxazole; safe to take with another drug?
Check with multiple drugs →Explore this drug