At the end of October 2025, we tested a number of substances of particular health concern. In addition to several samples submitted for analysis as ecstasy tablets containing high doses of MDMA, two tablets also contained Caffeine and in a tablet instead of MDMA, Amphetamine was detected. In some samples submitted for analysis as cocaine, mixtures of cocaine, Caffeine or procaine was found. One 2C-B sample also contained a unknown substance. In a sample submitted for analysis as MDMA, in addition to MDMA also N-Ethylpentedron were found. One sample submitted for analysis as speed and one as MDMA were instead found to be Methamphetamine.

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 week 44 - 2025