英语语法分析

Leucovorin may also be used to prevent the side-effects of pyrimethamine.

另外，可使用亚叶酸防止乙嘧啶的副作用。

The infection is treated with drugs such as pyrimethamine, sulfadiazine and clindamycin.

对于这种感染可用乙嘧啶，磺胺嘧啶和氯林可霉素等药物进行治疗。

This is the use of a single drug (or monotherapy) of chloroquine, sulfadoxine-pyrimethamine, or another antimalarial medicine to fight malaria.

这种疗法使用氯喹、磺胺多辛-乙胺嘧啶或另一种抗疟药物等单一药物治疗疟疾（亦称单一疗法）。