ADB-4en-PINACA is classified as a synthetic cannabinoid. Synthetic cannabinoids have been reported to cause psychoactive effects similar to delta-9-tetrahydrocannabinol (THC). Synthetic cannabinoids have caused adverse events, including deaths.
MDMB-4en-PINACA and ADB-PINACA are structurally similar synthetic cannabinoids. ADB-PINACA is a Schedule I substance in the United States; ADB-4en-PINACA and MDMB-4en-PINACA are not explicitly scheduled.
December 2022 NFLIS Snapshot Report – found specimens in the US.
April 4, 2023 – Federal Register Notice
Temporary Placement of MDMB-4en-PINACA, 4F-MDMB-BUTICA, ADB-4en-PINACA, CUMYL-PEGACLONE, 5F-EDMB-PICA, and MMB-FUBICA in Schedule I