At the beginning of May 2025, we tested a number of substances of particular health concern. Some ecstasy tablets contained a (very) high dose of MDMA. A tablet submitted for analysis as 2C-B also contained a high dose of MDMA. In addition to cocaine, procaine was also detected in some cocaine samples. One sample submitted as methamphetamine showed N-Ethylpentedron and a 3-MMC sample instead contained 3-CMC. One sample submitted for analysis as cannabis also contained MDMB-4en-PINACA proven.

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 20 - 2025