Initially, only the dissociative arylcyclohexylamine derivative methoxetamine was banned as a temporary class drug in the UK, effective from 5 April 2012.
"[5] On 10 June 2013, a total of 10 benzofuran and indole analogues and four NBOMe hallucinogens were classified as Temporary Class Drugs in the UK following an ACMD recommendation.
Specifically these include 5-APB, 6-APB, 5-APDB, 6-APDB and their N-methyl derivatives 5-MAPB, 6-MAPB, 5-MAPDB and 6-MAPDB, as well as 5-IT and its isomer 6-IT, plus NBOMe-2C-C, NBOMe-2C-B, NBOMe-2C-I and NBOMe-2C-D.[6] This means that sale and import of the named substances are criminal offences and are treated as for Class B drugs.
This Act promises to introduce strict toxicity testing and quality control standards for recreational psychoactive substances, with products that are proved to meet the safety criteria being allowed to be sold legally.
A number of interim licenses have been refused or revoked under this process, and by January 2014 a total of twelve more synthetic cannabis products had been removed from sale, containing ingredients such as ADB-CHMICA (SGT-7), 5F-PB-22, SGT-55 (CUMYL-BICA), SGT-56 (CUMYL-PICA), 4-F-AM-2201, 4-Cl-AM-2201 and PB-22.
[19][20][21] On 27 April 2014 it was announced that all 41 remaining untested "legal high" products, which had been allowed to continue to be on sale during an interim period, were to be banned on 9 May 2014.
[19] No "legal high" products will be allowed back on sale in New Zealand under the Psychoactive Substances Act until they have been tested in a manner yet to be determined, and found to present a "low risk of harm".