ive done massive research on cocaine ,as it stimulates the receptors in your hyper thalamus to create dopamine ,my wife has Parkinson disease ,,its the body's in ability to produce strong enough levels of dopamine ,witch causes all the problems ,,they have a drug called eldopa that alot use to synthetically create dopamine in pd patients but it has sever side effects ,They have tested cocaine in pd patients and found it works FANTASTIC for them ,prob is the RED TAPE and being made in bath tubs ,its not pure enough to treat people and the govt isnt interested in legalizing this as a cure thats for sure ,,same as medical pot ,but i can tell you ive seen it work with my own eyes ,,the shaking stops ,the tremmors stop the ability to walk come back ,and this is for a 24 hr period i seen ,this person wasent high,they just did a little and just as we thought ,,it works ..the cures to most things are already available and im not waiting on some dr to run a bunch of twice blind studies to tell me what i already know