法西达(Fansidar)是一种内含乙胺嘧啶25mg和周效磺胺500mg的片剂。是治疗抗氯喹恶性疟病人的首选药物。在泰国,一次口服该药2或3片,能使80～90%的患者获得根治。本文报道了泰国Baen Kaeng控制中心的难民营中恶性疟对法西达产生抗性的情况。共观察9例门诊发热病人,其中男性3例,女性6例,年龄为10～46岁,体温在38℃ Fansidar is a tablet containing 25 mg pyrimethamine and 500 mg psoason. Is the treatment of chloroquine-resistant malaria patients preferred drug. In Thailand, oral administration of 2 or 3 tablets at a time can cure 80 to 90% of patients. This article reports on the resistance of falciparum malaria to Faxidac in refugee camps in the Baen Kaeng Control Center in Thailand. A total of 9 cases of outpatient fever were observed, including 3 males and 6 females, aged 10 to 46 years old, body temperature at 38 ℃