This Order brings certain drugs under the control of the Misuse of Drugs Act 1971 (‘the Act’). Article 3 of this Order brings a synthetic opioid known as U-47,700 under permanent control as a Class A drug under the Act. Article 4 brings several methylphenidate related materials under permanent control as Class B drugs. A number of these methylphenidate related materials were specified under section 2A of the Act as drugs subject to temporary control by virtue of the Misuse of Drugs Act 1971 (Temporary Class Drug) Order 2016 (S.I. 2016/650) and cease to be subject to such temporary control on the coming into force of this Order in accordance with section 2A(6)(b) of the Act. Article 5 brings several designer benzodiazepines under permanent control as Class C drugs.