title: A comparative trial of bromhexine HCl and oxytetracycline in acute and chronic bronchitis.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D001964:Bromhexine / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D010118:Oxytetracycline / Q000627:therapeutic use*
chemical_list: D001964:Bromhexine; D010118:Oxytetracycline