UK prescribed medical cannabis is taken via vaporisation, not smoking, to avoid...

https://scarlettsinspiringop-ed.zenbloomer.com/posts/is-convection-worth-it-if-you-use-your-medical-cannabis-several-times-a-day

UK prescribed medical cannabis is taken via vaporisation, not smoking, to avoid harmful toxins. Device type—conduction or convection—and temperature settings impact the effectiveness and experience of vaporising