Sulfamethoxazole A bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. Its broad spectrum of activity has been limited by the development of resistance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p208)
MediLexicon sulfamethoxazole - Medical Dictionary Definition for Term 'sulfamethoxazole'
[1. A sulfonamide related chemically to sulfisoxazole, with a similar antibacterial spectrum, but a slower rate of absorption from the gastrointestinal tract and urinary excretion. Often used in combination with trimethoprim (SMX-TMP).