支气管哮喘(简称哮喘)是常见的疾病。轻者仅感胸闷、气憋,或仅有咳嗽,终生仅发作1～2次;重者反复发作,或终年迁延不愈,甚至致死。在传统的治疗中,β肾上腺素能受体兴奋剂(如舒喘灵)止喘效果确切,是常用的止喘药物;茶硷类药物(如氨茶硷)也很有效,轻症哮喘经这两类药物治疗常能平息哮喘发作。效果不满意时可采用其他药物,抗胆硷药物(如异丙托品)、α肾上腺能受体阻滞剂(如酚妥拉明)在有些病例可取得疗效;钙通道阻滞剂(如硝苯 Bronchial asthma (asthma) is a common disease. Light only chest tightness, gas hold back, or only cough, life-long episodes of only 1 or 2 times; severe recurrent, or persistent throughout the year, or even death. In the traditional treatment, beta adrenergic receptor agonists (such as salbutamol) stop bleeding with the exact effect is commonly used antiasthmatic drugs; theophylline drugs (such as ammonia theophylline) is also very effective, mild asthma by Both types of medications often calm an asthma attack. Other drugs can be used when the effect is not satisfied, anticholinergic drugs (such as ipratropium), α-adrenergic receptor blockers (such as phentolamine) in some cases can be effective; calcium channel blockers Nitrile