Drug Reference

Sulfamethoxazole / Trimethoprim

Combinations of sulfonamides and trimethoprim, incl. derivatives

← All medicines · Combinations of sulfonamides and trimethoprim, incl. derivatives

Fact box

Therapeutic class
Combinations of sulfonamides and trimethoprim, incl. derivatives

Brand names

BactrimSulfatrim

Available as

100 MG · Oral Tablet5 ML · Injection400 MG · Oral Tablet800 MG · Oral Tablet80 MG/ML · Oral Suspension40 MG/ML · Oral Suspension80 MG/ML · Injectable Solution
Multi-ingredient product
SulfamethoxazoleTrimethoprim

This medicine contains more than one active ingredient. To avoid attributing one component’s information to the whole product, structured label sections aren’t shown here — see the component pediatric notes below and the full combination label on DailyMed.

Current FDA labels (DailyMed)

10 marketed products on record (RxNorm)

Reference only — not clinical advice. Verify against current FDA labeling and consult a licensed provider. About half of pediatric drug use is off-label and is not reflected in FDA labels; absence of pediatric information does not mean a medicine is unused or unsafe in children.