At the beginning of February 2026, we tested a number of substances of particular health concern during inpatient drug checking. In several tablets dispensed as ecstasy High dosages MDMA and admixtures of Caffeine was detected. In two tablets, instead of the expected MDMA, 3-CMC and one unknown substance found. Three cocaine samples contained typical extenders such as Procaine, caffeine or Phenacetin. In several samples submitted for analysis as 2C-B, additional Unknown substances or admixtures of 4-MMC was detected. Several cannabis samples also contained additional Unknown substances or synthetic cannabinoids. One sample, which was submitted as an unknown substance, contained 5F-MDMB-PINACA. In addition, in several samples submitted as mephedrone, besides the expected
4-MMC also 4-CMC and 4-BEC .

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 7 - 2026