Long-acting bronchodilators are the cutting edge in asthma treatment. Patients use a peak flow meter to monitor their condition. When it is unstable, they can take medication as a preventive measure, and so greatly reduce the frequency of asthma attacks.
使用長效型氣管擴張劑是目前氣喘治療的新趨勢，氣喘患者要每天以「呼氣流速器」監控病情，情況不穩定時先行用藥，可以大幅減少氣喘發作的次數。