Authorities in the city of Basel have drawn a positive interim conclusion following three years of regulated cannabis sales in the city on the Rhine. +Get the most important news from Switzerland in your inbox Thanks to the Weed Care pilot project, the inhalation of smoke from joints containing tobacco has fallen significantly, the cantonal health department said on Thursday. Health risks have been reduced and consumption has not increased. The introduction last autumn of non-smoked cannabis products – namely vaporisers and oils – into the controlled sales scheme has been a success: they now account for nearly a fifth of consumption, without total consumption having increased, the health department added. The review of the past year also confirms the observations made a year ago regarding users’ mental health. Symptoms of depression, anxiety and psychosis have decreased. The same applies to the consumption of alcohol and other psychoactive substances among participants in the Basel …