CBD trial to treat hallucinations in Parkinson’s disease

Researchers across the UK are trialling a range of cannabis extracts to treat conditions from pain and asthma to brain cancer.

Charles Ogilvie-Forbes is taking part in a study at King's College Hospital, London, using CBD to treat the hallucinations he experiences due to his Parkinson’s disease.

Filming and graphics: Julius Peacock

Edited: Rachael Buchanan