The invention relates to the compounds of formula I, formula II and formula III or its pharmaceutical acceptable salts, as well as polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising an effective amount of compounds of formula I, formula II and formula III, and methods for treating or preventing Parkinson's diseasemay be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection. Such compositions may be used to treatment or management of Parkinson's diseasesuch as Parkinson's disease, scleroderma, restless leg syndrome, hypertension and gestational hypertension.
