UK prescribed medical cannabis is typically consumed through vaporisation...

https://www.thelondoneconomic.com/lifestyle/health/how-medical-cannabis-vaping-works-temperature-devices-and-the-economics-behind-it-409054/

UK prescribed medical cannabis is typically consumed through vaporisation rather than smoking to avoid harmful toxins. Vaporiser type—conduction or convection—and temperature settings influence the effectiveness and safety of inhalation