title: Clinical trials on a new antitussive agent. 2-morpholinoethylic ester of a-phenoxyisobutyric acid (morphethylbutyne).
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000996:Antitussive Agents / Q000627:therapeutic use; D002087:Butyrates / Q000008:administration & dosage / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D003061:Codeine / Q000627:therapeutic use; D003371:Cough / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos
chemical_list: D000996:Antitussive Agents; D002087:Butyrates; D010919:Placebos; D003061:Codeine