Epidiolex / Epidyolex is an altered compound, not real cannabis, and cases of liver damage have been attributed to its use, that being the most common reason for some trial patients having to stop taking the drug. ‘They’ get something good, make it toxic, then give it to you, and make exorbitant amounts of money out of it in the process, a typical NHS/Big Pharma collaboration, a typical NHS/Big Pharma cock-up, when cannabis itself in its natural form would not cause liver damage.

https://www.independent.co.uk/news/health/cannabis-medicine-cannabidiol-cbd-availability-nhs-epilepsy-treatment-a9255991.html