Between mid- and late October 2026, we tested a range of substances posing a particular health risk. Some of the tablets submitted for analysis as ‘ecstasy’ contained active ingredients other than MDMA. For example, in two tablets PMMA and in one tablet 3-FEA (3-fluoroethamphetamine) detected. Other tablets contained, in addition to or exclusively Caffeine and/or Amphetamine. The majority of the samples submitted as 3-MMC or 4-MMC did not contain the expected cathinone, but rather another substance from the group of Cathinones (e.g. alpha-PVP, N-ethylpentedrone, 3-CMC, 2-MMC or 4-CMC) or a mixture of several of these.

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 for calendar week 45 – 2026