Methacholine-induced cough as an indicator of bronchodilator-responsive cough

Cough variant asthma (CVA) is the most common cause of chronic cough and responds well to bronchodilator therapy. Previous studies on methacholine -induced cough have shown that heightened cough response due to bronchoconstriction is a feature of CVA. The aim of this study was to assess Mch-induced cough as an indicator of bronchodilator-responsive cough (BRC). This was a single-center retrospective study of prolonged/chronic cough cases who...