How cannabis becomes medicine

Chemist Markus Lüdi is Switzerland’s only producer of a natural tincture made from cannabis. In his laboratory in Burgdorf in canton Bern he demonstrates how a liquid drug can be produced from cannabis flowers. 

 

The cannabis contains around 5% THC (tetrahydrocannabinol), the psychotropic substance of the plant with therapeutic properties.

The inflorescences are separated from the stems and leaves – painstaking, tedious work that is done by hand.

After the work is finished, only a quarter of the original 150 kg cannabis crop is left.

The approximately 40 kg of crushed cannabis flowers are kept in a refrigerator.

 

 

  The cannabis flowers are poured into a 70% alcohol solution.

To remove the THC and other cannabinoids, the solution is stored...

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URL: 
http://www.swissinfo.ch/eng/multimedia/from-plant-to-bottle_how-cannabis-becomes-medicine/41493906