[Chemico-pharmacological studies on antitussives. II. On the site of antitussive action of 1-(3',4'-dihydroxyphenacyl)-4-(2-hydroxypropyl) piperazine dihydrochloride].
D000996:Antitussive Agents; D000077489:Piperazine; D010879:Piperazines
D000996:Antitussive Agents; D010879:Piperazines; D000077489:Piperazine
ANTITUSSIVE AGENTS; PIPERAZINES