``The only chemical which induces a selective dopaminergic sympathectomy that simulates ideopathic Parkinson's disease is MPTP (1-methyl-4-phenyl-1,2,3,6- tetrahydropyridine) which is the product of an innacurate attempted synthesis of MPPP (1-methyl-4-phenyl-4-propionoxypiperidine) from MPHP (1-methyl-4-phenyl-4-hydroxypiperide) - these are meperidine (Demerol) analoges and not amphetamine derivatives. I presume you are referring to MDA, MDMA, MDE and that class of drugs. They do not cause Parkinson's disease and have not been shown to cause dopamine neurotoxicity.''For this correction to an earlier version, my thanks. All remaining errors are, of course, my fault.
CRS