The present invention relates to a method of treating cataplexy in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of certain carbamate compounds.

The present invention relates to novel carbamate intermediate of formula (II), process for its preparation and process for its conversion into 3-[(1R,2R)-3-(dimethylamino)-1-ethyl-2-methylpropyl]phenol, tapentadol and its pharmaceutically acceptable salts. ##STR00001##

The present invention relates to a method of treating cataplexy in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of certain carbamate compounds.

The present invention relates to a method of treating cataplexy in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of certain carbamate compounds.

The present invention relates to a method of treating cataplexy in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of certain carbamate compounds.

The invention relates to the compounds of formula I and formula II 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 or formula II; and methods for treating or preventing multiple sclerosis may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection. Such compositions may be used to treatment of neurodegenerative diseases and other neuro-inflammatory diseases.