Breadcrumb Home > Thesaurus > P Synonyms of penicillin v potassium Find synonyms for: Noun1. penicillin V potassium, Ledercillin VK, penicillin V, phenoxymethyl penicillinusage: a form of penicillin V (trade name Ledercillin VK)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: tendentious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language