In mid to late January 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 detected. In two speed samples Unknown substances and in several cocaine samples typical extenders such as Levamisole, phenacetin or Procaine were found. Three LSD samples and one cannabis sample also contained additional unknown substances. In addition to the expected 4-MMC, several samples submitted as mephedrone also contained 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 KW 5 - 2026