Objective To verify the effectiveness and reliability of Kechuanling Effervescent Troche in treating cough in children for attacking on the lung by wind and heat (acute bronchitis).

• 目的验证小儿咳喘灵泡腾片治疗小儿咳嗽风热犯肺证(急性支气管炎)的有效性与安全性。