Ambroxol hydrochloride spray (Luo Runchang®) in the treatment of acute respiratory infectious diseases: a prospective, multicenter, open label, randomized controlled study

Cough and sputum are the most common clinical symptoms of acute respiratory tract infection. Ambroxol is a mucolytic expectorant commonly used in clinical practice. This study aimed to evaluate the efficacy, safety, and compliance of ambroxol hydrochloride spray (Luo Runchang ®) for the treatment of acute respiratory tract diseases in children.