目前 ,临床平喘治疗方法较多 ,但往往疗效有时不甚理想 ,在常规治疗后哮喘不能缓解 ,称为难治性哮喘。我们自1998年 2月至今 ,在常规平喘治疗基础上加用硫酸镁及酚妥拉明后效果满意 ,现报告如下。1　资料与方法1.1　一般资料　所有病例均抗感染、激素、β受体兴奋剂以及氨茶碱 At present, clinical asthma treatment more, but often less effective sometimes ideal, in conventional treatment of asthma can not be alleviated, known as refractory asthma. We have from February 1998 to date, based on conventional antiasthmatic treatment with magnesium sulfate and phentolamine after satisfactory results are as follows. 1 Materials and Methods 1.1 General Information All cases were anti-infective, hormones, β-receptor agonists and aminophylline