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Octenidine dihydrochloride is an effective antiseptic compound for skin mucous membranes and wounds.

Octenidine concentrations of less than1.5 μM (0.94 μg/mL) causes a greater than 99% reduction of tested microbial population within 15 min. Staphylococcus epidermidis is the most susceptible of the test organisms, and E. coli and C. albicans are the least susceptible[1].

The antimicrobial activity of octenidine hydrochloride (OCT) is maintained when applied to the skin of the hands and feet of cynomolgus monkeys. Aqueous octenidine, at a concentration of 0.2 to 1.6% reduces resident microflora populations from 90 to 99.98%[1]. A significant reduction in plaque score is observed on the buccal tooth surfaces after daily topical application of 1% solutions of octenidine and chlorhexidine for 7 d; octenidine is more effective than chlorhexidine[2].

[1]. Sedlock DM, et al. Microbicidal activity of octenidine hydrochloride, a new alkanediylbis[pyridine] germicidal agent. Antimicrob Agents Chemother. 1985 Dec;28(6):786-90. [2]. Emilson CG, et al. Effect of the antibacterial agents octenidine and chlorhexidine on the plaque flora in primates. Scand J Dent Res. 1981 Oct;89(5):384-92.

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