Provided is a therapeutic agent for treating asthma in a human by administering an IL-6 inhibitor to a human. Representative IL-6 inhibitors in the present invention include an IL-6 receptor antibody, an IL-6 antibody, and the like. This therapeutic agent can achieve a therapeutic effect even in patients having severe asthma who require administration of high-dose steroids and the like to alleviate the symptoms or in patients whose symptoms are difficult to control by common treatments.本發明提供藉由對於人投予IL-6抑制劑，以治療於人之哮喘的治療劑。本發明中代表的IL-6抑制劑，包括IL-6受體抗體、IL-6抗體等。本發明之治療劑，對於即使是為了症狀緩和需要投予高用量類固醇等之重傷哮喘患者、或以一般的治療難控制症狀的患者，仍可獲得治療效果。
