title: CLINICAL IMPRESSION AND SUBSEQUENT DOUBLE BLIND STUDY OF AN ANTITUSSIVE PREPARATION.
mesh_terms: D000996:Antitussive Agents; D035843:Biomedical Research; D002744:Chlorpheniramine; D004311:Double-Blind Method; D004358:Drug Therapy; D004809:Ephedrine; D006801:Humans; D010656:Phenylephrine; D012141:Respiratory Tract Infections
chemical_list: D000996:Antitussive Agents; D010656:Phenylephrine; D002744:Chlorpheniramine; D004809:Ephedrine
keywords: ANTITUSSIVE AGENTS; CHLORPHENIRAMINE; CLINICAL RESEARCH; DRUG THERAPY; EPHEDRINE; PHENYLEPHRINE; RESPIRATORY TRACT INFECTIONS