Ionic conjugates of lidocaine and sweeteners as better tasting local anesthetics for dentistry

Iryna O. Lebedyeva, Alexander A. Oliferenko, Polina V. Oliferenko, Robert A. Hromas, John K. Neubert, Robert M. Caudle, Jay Wickersham, William L. Castleman, Gary I. Altschuler, David A. Ostrov, C. Dennis Hall, Alan R. Katritzky

    Research output: Contribution to journalArticlepeer-review

    5 Scopus citations

    Abstract

    Lidocaine is the most widely utilized intraoral injected dental anesthetic, used for more than 500 million dental injections per year. Local anesthesia is essential for pain-free dentistry, yet intraoral injections are often considered painful and a source of anxiety for many patients. Any new anesthetics that will reduce the stress and anxiety of dental injection are expected to be beneficial. A novel chemical approach to taste modulation is proposed, in which the lidocaine cation is coupled with anionic sweeteners such as saccarinate and acesulfamate. The ionic conjugates synthesized using anion exchange techniques, were much less bitter, demonstrated a high local anesthetic potential in animal studies, and were as safe as the original hydrochloride. Based on the currently robust market for lidocaine it is expected that the resulting anesthetics will be in high demand in clinical practices worldwide.

    Original languageEnglish (US)
    Pages (from-to)8492-8498
    Number of pages7
    JournalJournal of Materials Chemistry B
    Volume3
    Issue number43
    DOIs
    StatePublished - Sep 23 2015

    ASJC Scopus subject areas

    • General Chemistry
    • Biomedical Engineering
    • General Materials Science

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