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

用结合 SulfADIAZine 及 pyrimethamine 物治疗法可以抑制寄虫对于叶酸，也就是维B9，用，而叶酸正是寄虫产新DNA不可或缺重要成分 。