Effects of cannabidiol in the treatment of patients with Parkinson’s disease: An exploratory double-blind trial.

“Parkinson’s disease (PD) has a progressive course and is characterized by the degeneration of dopaminergic neurons.

… the endocannabinoid system has emerged as a promising target.

…Our findings point to a possible effect of CBD in improving quality of life measures in PD patients with no psychiatric comorbidities…”