Cannbis Study in Zurich: Now the Black Market Suffers

(pm) Zurich, May 20, 2025 – For a year now, around 4,400 participants in the canton of Zurich have been using cannabis for study purposes – about 3,000 of them legally. First results show that cannabis has arrived in the middle of society – and that cannabis consumers are mostly dissatisfied with the black market. The Zurich study by the Swiss Cannabis Research Association, which is accompanied by the University of Zurich and the KOF (Economic R…

In their first review, the managers of a cantonal cannabis sales pilot project report that more than 90% of participants are turning away from the black market to favour legal grass. Their consumption habits have evolved to integrate products with low THC contentThe largest controlled cannabis sales pilot project in Switzerland puts pressure on the illegal market. The overwhelming majority of the 3000 Zurich participants are turning away from it…

The largest pilot project for the regulated sale of cannabis in Switzerland puts pressure on the illegal market. The overwhelming majority of the 3,000 Zurich participants turn away from it, according to a first assessment taken one year after the start of the study.

The large cannabis study, which has been running in the canton of Zurich for a year, has a first effect on the black market.