At the end of December 2023, we tested a number of substances of particular health concern. In addition to some high-dose ecstasy tablets, two tablets contained the new psychoactive substance 3-fluoroethamphetamine (3-FEA) detected. A sample submitted for analysis as speed did not contain the expected amphetamine, but a mixture of Caffeine, N-Ethylpentedron and one unknown substance. In two samples submitted as THC cannabis, the synthetic cannabinoid MDMB-4en-PINACA was detected; one of the samples also contained MDMB-INACA. Three 3-MMC samples showed no 3-MMC, but two of them showed 2-MMC and one 3-CMC (Clophedrone) . In a mephedrone sample Amphetamine, Caffeine and 4-CMC (Clephedrone) were identified. Another mephedrone sample contained only an unknown substance. A sample submitted for analysis as 4-AcO-MET showed not only the expected psychedelic substance but also Diacetylmorphine . A GHB sample turned out to be GBL .

Under the following link, all samples that have been analysed by checkit! since the last warnings and classified as high-dose, unexpected or of particular health concern are presented in detail: Current warnings KW 2 - 2024