is opium a depressant
Opium is classified as a central-nervous depressant, containing phenanthrene alkaloids morphine, codeine, and to a lesser extent thebaine. In the United States, opium is listed as a Schedule II narcotic, outlawing sale, distribution and purchase by anyone.Opium has a history of many medical applications.pium contains up to 12% morphine, an alkaloid, which is frequently processed to produce heroin for the illegal drug trade. The latex paste also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine.