Trimethoprim

Also Known As: Trimethoprim, Proloprim, Monotrim, Triprim

Trimethoprim (INN) is a bacteriostatic antibiotic mainly used in the prophylaxis and treatment of urinary tract infections.

It belongs to the class of chemotherapeutic agents known as dihydrofolate reductase inhibitors. Trimethoprim was formerly marketed by GlaxoSmithKline under trade names including Proloprim, Monotrim and Triprim; but these trade names have been licensed to various generic pharmaceutical manufacturers. In clinical use it is often abbreviated TRI or TMP;

Trimethoprim, used as monotherapy (since 1980 in the UK), is indicated for the prophylaxis and treatment of urinary tract infections. (Co-trimoxazole, with its greater efficacy against a limited number of bacteria, and parasites remains indicated for some infections, see above.)


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