/ Thesaurus / P Synonyms of propoxyphene hydrochloride Find synonyms for: Noun1. propoxyphene, propoxyphene hydrochloride, Darvon, analgesic, anodyne, painkiller, pain pillusage: a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictiveWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: bibliophile Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language