In mid-August 2026, we tested a range of substances posing a particular health risk. Several tablets submitted for analysis as ‘ecstasy’ contained a high or very high dose of MDMA. In some cocaine samples, cutting agents such as Levamisole, Procaine and/or Caffeine It was found that a tablet sold as alprazolam contained, instead, Flualprazolam. One GHB sample also contained GBL and 2 unknown substances.
In some of the samples submitted as 3-MMC and 4-MMC, it was not the expected cathinone that was found, but another cathinone, including 4-CMC, 4-MMC, N-Ethylpentedron and 4-BEC identified. A sample labelled as CBD contained an unspecified a specific semi-synthetic cannabinoid.

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 35 – 2026