UK prescribed medical cannabis is typically vaporised rather than smoked to...

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 vaporised rather than smoked to avoid harmful toxins. The method and temperature used—whether conduction or convection vaporisation—affect how cannabinoids are delivered