A toxic substance with the chemical formula 1-methyl-4-phenyl- 1, 2, 6-tetrahydropyridine.
A toxic chemical, exposure to which causes Parkinson's disease symptoms in some intravenous drug users. It is now used to produce Parkinson's symptoms in laboratory animals in order to study the disease.
a chemical produced during an attempt to make a synthetic narcotic. MPTP destroys the cells of the substantia nigra and produces a condition that mimics Parkinson's disease.