A dual therapy of SulfADIAZine, pyrimethamine, inhibits the utilization of folate, or Vitamin B9, which is vital to producing parasitic DNA.

利 SulfADIAZine pyrimethamine 两种药物的治疗法可以抑制寄虫对于酸，也就是维素B9，的利，酸正是寄虫产新DNA不可或缺的重要成分 。