sulfasymazine

例句：

1. 1. This medicine is used to treat urinary tract infections caused by bacteria.
   这种药物用于治疗由细菌引起的尿路感染。
2. 2. Sulfasymazine has been shown to be effective against some strains of the flu virus.
   磺胺嘧啶已被证明对某些流感病毒株有效。
3. 3. The patient was given a prescription for sulfasymazine and instructed to take it as directed.
   病人被开处了磺胺嘧啶的处方，并被指示按照指示服用。