a new antimicrobial drug combination of trimethoprim and methenamine hippurate ( tmp + mh ) at 2 different dosages ( 100 + 500 mg and 200 + 1000 mg b.i.d . ) was compared by a random double-blind technique with plain tmp ( 200 mg b.i.d . ) and tmp-sulfamethoxazole combination ( 160 mg + 800 mg b.i.d . ) .
C1136254
antimicrobial drug
C0038689
sulfamethoxazole