Watch Medical Marijuana's effect on Parkinson's,. Aided by a fellow Parkinson's patient and marijuana advocate, Larry tries medical marijuana for the first time. With a few drops of cannabis oil under his tongue, Larry's severe dyskinesia (uncontrolled movements), loss of voice, and tremors are calmed within in minutes! We didn't even edit the footage because the results were so startling. Please share this to help educate the public. This isn't about politics, people need to see how medical marijuana works on very real patients with very real problems!