evidence: There have been some small studies in people. Research continues to see if cannabis-based medicines could help in the treatment of some cancers or symptoms. But at the moment, there is no reliable, medical evidence to show whether cannabis, in any form, can effectively and safely treat cancer in humans. [...] It is possible that cannabis may have an effect in treating some types of cancer. But it may make other types of cancer grow or spread more quickly. [...] Cancer Research UK. Cannabis, cannabinoids and cancer – the evidence so far; 2021. Available from: Cannabis, cannabinoids and cancer – the evidence so far - Cancer Research UK - Cancer news [accessed Feb 2022]