Bromhexine is a substituted aniline that is 2,4-dibromoaniline which is substituted at position 6 by a [cyclohexyl(methyl)amino]methyl group. It is used (as the monohydrochloride salt) as a mucolytic for the treatment of respiratory disorders associated with productive cough (i.e. a cough characterised by the production of sputum). It has a role as a mucolytic. It is a substituted aniline, a tertiary amino compound and an organobromine compound. It is a conjugate base of a bromhexine(1+).