The Misuse of Drugs Act 1971 (Modification) Order 1983
This Order amends Schedule 2 to the Misuse of Drugs Act 1971, which specifies the drugs which are subject to control under the Act. The Order adds Sufentanil and Tilidate to Part I of that Schedule (which specifies Class A drugs), and adds Dextropropoxyphene to Part III (which specifies Class C drugs).