with respect to plasma half-life after the first dose , sulphadiazine with 8.0 hours was closer to trimethoprim with a half-life of 8.8 hours after cotrimazine and 9.6 hours after co-trimoxazole than to the half-life of sulphamethoxazole which was 7.7 hours .
C0041041
trimethoprim
C0041044
co-trimoxazole