The first data collected from the Grashaus Project in the canton of Basel-Landschaft has been published.
The pilot in canton Zurich will include up to 7,500 participants and is the first to include a randomised control trial as part of the research.
A sixth pilot for the sale of adult-use cannabis has been approved in Basel-Landschaft.
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Swiss company Cannavigia is supporting the pilot with its track and trace software.
Thousands of Swiss residents have access to legal adult-use cannabis, while patients say they are still struggling to get prescriptions.
Zurich will be the second Swiss city to legalise the sale and consumption of limited amounts of cannabis for personal use.
