对100名有症状的贾弟虫患者给予1.5克单剂量的氯甲硝眯唑或甲硝磺酰咪唑。所有患者粪便中的贾弟虫常在2或3天内消失,98例的症状常在5天内消退。随访中,治疗后1至7周内有10例患者复发(两药各5例)。复发通常有症状,而重复感染的可能性不予考虑。在血清中出现氯甲硝咪唑比甲硝磺酰咪唑快,两药的半 One hundred patients with symptomatic Giardia were given a single dose of clonidine or metylsulfonylimidazole 1.5 grams. All patients Jia Jia insects often disappear in 2 or 3 days, 98 cases of symptoms often subside within 5 days. At follow-up, 10 patients relapsed within 1 to 7 weeks after treatment (5 in both drugs). Recurrences are usually symptomatic, and the possibility of repeated infections is not considered. Chlormetretans appear to be faster in serum than methasulphazole, half the two drugs