Objective: To investigate the clinic efficiency and safety of comparing pranlukast to Zafirlukast on asthmatic patients with with asthma symptoms score and PEF.

• 摘要目的：用哮喘症状评分及峰速仪测量PEF评价国产普鲁司特胶囊治疗支气管哮喘的临床疗效。