Key Findings:  Medical cannabis has show to be able to reduce typical Parkinson's disease symptoms such as tremor, bradykinesia, rigidity, mood disorders such as depression, poor sleep, and pain. At the same time the researchers highlight the potential adverse effects of short-term and long-term effects including cognitive problems commonly associated with the THC abundant cannabis chemotype I.
Type of Study:  Meta-analysis
Study Result:  Positive
Cannabinoids Studied:  Cannabidiol (CBD), Tetrahydrocannabinol (THC), Anandamide (AEA), Cannabinoid (unspecified)
Phytocannabinoid Source:  Not Applicable