one hundred and nine patients with genital ulcers ( 75 men and 34 women ) seen at the special treatment clinic in nairobi , kenya , were randomly assigned to treatment with a seven day course of either sulphamethoxazole 1000 mg twice daily or trimethoprim ( 160 mg ) -sulphamethoxazole ( 800 mg ) ( tmp-smx ) twice daily .
C0038689
sulphamethoxazole
C0041044
tmp-smx