Researchers in Somerset are joining others across the UK to investigate whether cannabidol, or CBD, can treat psychotic symptoms in Parkinson’s patients.
Studies have shown that CBD may reduce psychosis, although it had not yet been tested with Parkinson’s patients.
Somerset NHS Foundation Trust said around three in five people with the condition experienced symptoms including hallucinations or delusions.
The NHS said the trial could offer a safer option as current treatments for the condition were not effective, safe, or convenient for regular use.