UK prescribed medical cannabis is typically vaporised, not smoked, to avoid...

https://www.blaze-bookmarks.win/uk-medical-cannabis-is-typically-vaporised-not-smoked-to-avoid-harmful-toxins

UK prescribed medical cannabis is typically vaporised, not smoked, to avoid harmful toxins from combustion. Vaporiser type—conduction or convection—and temperature settings influence the release and effects of cannabinoids