Yes
Narcotics are pain relieving drugs that can be addictive (severely constipating)
Mainly athletics and sometimes field sports.
Oxycodone.
Opium derivatives come from Opium Poppies. Synthetic opiates are made in the laboratory. Cocaine is derived from Coca leaves, which are also considered narcotics by the DEA. Note: The word "narcotic"...
States Banning Narcotic 'Bath Salts'
Narcotics: The Good Bad Ugly in Pain Management
Nils Gilman on the Black Market and Deviant Globalization
Nils Gilman on the Demand and Supply Economics of Cocaine