The invention relates to the compounds of formula I 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, and methods for the treatment of neurological degenerative disorders and neurological diseases may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection. Such compositions may be used to treatment of narcolepsy, shift work sleep disorder, and as an adjunct treatment for obstructive sleep apnea/hypopnea, hypersomnias, like idiopathic hypersomnia, Psychiatric/neurodegenerative disorders, ADHD, Psychiatric/neurodegenerative disorders, Depersonalization disorder, Cognitive enhancement, Fatigue, Post-chemotherapy cognitive impairment and weight loss.
