At the end of February / beginning of March 2026, we tested a number of substances of particular health concern. In four tablets submitted for analysis as ecstasy, other ingredients were identified instead of the expected MDMA: two tablets contained a mixture of MDMA and caffeine, one tablet contained Amphetamine and caffeine and another the new psychoactive substance 3-FEA (3-fluoroethamphetamine). In four samples submitted for analysis as cannabis, synthetic cannabinoids (MDMB-PINACA or ADB-4en-PINACA) were identified. The majority of samples submitted as 3-MMC or mephedrone (4-MMC) did not contain the expected cathinone, but another cathinone or a mixture of several cathinones, including 3-CMC, 4-CMC, N-Ethylpentedron and 4-BEC. Three samples submitted as LSD, including two tablets and one liquid, did not contain the expected substance, but one unknown substance.

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 11 - 2026