a double-blind , multi-centre trial was carried out in 72 patients with acute or chronic infections of the lower respiratory tract to compare the efficacy and tolerance of a sulfamethopyrazine ( 200 mg ) /trimethoprim ( 250 mg ) combination with that of the established combination co-trimoxazole ( 400 mg sulphamethoxazole plus 80 mg trimethoprim ) .
C0041044
co-trimoxazole
C0038689
sulphamethoxazole