In vitro activity of benzoxonium chloride on selected buccopharyngeal pathogens
Cortat, M.; Fels, P.
Arzneimittel-Forschung 37(4): 463-466
1987
ISSN/ISBN: 0004-4172 PMID: 3606701 Document Number: 290800
Minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs) of N-benzyl, N-dodecyl-N,N-di(2-hydroxyethyl)ammonium chloride (benzoxonium chloride, Orofar), a quaternary ammonium salt, were assayed on 14 strains associated with buccopharyngeal infections. MICs ranged between 2-5 micrograms/ml for Gram-positive bacteria and between 16 and 48 micrograms/ml for Gram-negative organisms. For Candida albicans they were between 6-8 micrograms/ml. MBCs for 1 and 2 min were only slightly higher than MICs. One strain of K. pneumoniae required, however, 100 micrograms/ml and 10 min of exposure. Results show that benzoxonium chloride has strong antimicrobial effect on organisms responsible for buccopharyngeal infections.
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