不要“预防性”用药不少患者对哮喘有恐惧心理,为了减少发作次数,不管发病不发病,每天定时服药两三次,而且往往坚持很长时间。其实,平喘药只在支气管痉挛时发挥扩张支气管的作用,并没有预防哮喘发作的作用,长期服用不但无益,反而有害。如麻黄素和喘息定,长期服用可以引起心悸、心律失常,还可使患者对药物产生耐受性,到了真正需要治疗时,一般的治疗剂量反而不能有效地平喘。茶碱类药物易 Do not “prophylactic ” medication Many patients have fear of asthma, in order to reduce the number of attacks, regardless of the incidence of morbidity, medication two or three times a day regularly, and often persist for a long time. In fact, antiasthmatic drugs only play a role in the expansion of bronchial spasm, and did not prevent the role of asthma attacks, long-term use is not only useless, but harmful. Such as ephedrine and wheeze, long-term use can cause heart palpitations, arrhythmias, but also allows patients to drug tolerance, to the real need of treatment, the general treatment dose but can not effectively asthma. Theophylline drugs easy