Bronchodilators remain the cornerstone of the treatment of airway disorders such as asthma
and chronic obstructive pulmonary disease (COPD). There is therefore considerable interest …

Background The diagnosis of acute bronchitis is made on clinical grounds and a variety of
clinical definitions have been used. There are no clearly effective treatments for the cough of …

Acute upper respiratory tract infections are extremely common in adults and children, but
only a few safe and effective treatments are available. Patients typically present with nasal …

Background Subacute cough following a non-specific viral infection lasting 3–8 weeks is
common. However, despite many treatment options there are no systematic reviews …

Background Chronic cough can be triggered by respiratory and non-respiratory tract
illnesses originating mainly from the upper and lower airways, and the GI tract (ie, reflux) …

Background Despite the frequent use of symptomatic therapies in cough, evidence of their
benefits is lacking. Objective We compared the effectiveness of 3 symptomatic therapies and …

Introduction Despite the frequent use of therapies in acute bronchitis, the evidence of their
benefit is lacking, since only a few clinical trials have been published, with low sample sizes …

Experimental studies indicate that airway calibre increases the sensitivity of the afferents
involved in the cough reflex but it has proved difficult to demonstrate that airway calibre …

Background Postinfectious cough (PIC) significantly affects cough-related quality of life but
still lacks effective treatments. This study aims to investigate the efficacy of QingfengGanke …

Data are limited, with results from only 2 ICS RCTs and 1 bronchodilator RCT. In adults, PIC
scores may improve about 50% when taking placebo and about 5% to 10% more with ICS …