/ Thesaurus / O Synonyms of orphenadrine Find synonyms for: Noun1. orphenadrine, Norflex, muscle relaxantusage: a skeletal muscle relaxant (trade name Norflex) used to treat severe muscle strain and ParkinsonismWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language