Methenamine

**Semantic type:** Pharmacologic Substance

**Definition:** A heterocyclic organic compound with antibiotic activity. In the body methenamine is converted to formaldehyde, a nonspecific bactericidal agent. Methenamine is typically used long-term to treat chronic urinary tract infections and to prevent the recurrence of infections.

**Synonyms:** - Hexamethylenetetramine - METHENAMINE - Urasal