2,4-Dichlorobenzyl alcohol is a mild antiseptic, able to kill bacteria and viruses associated with mouth and throat infections. It is a common ingredient in throat lozenges such as Cofsils, Strepsils, Lorsept, and Gorpils. It is also an ingredient in the European product Neo Borocillina.[1] A low-pH throat lozenge containing dichlorobenzyl alcohol (1.2 mg) and amylmetacresol (0.6 mg) has been found to deactivate respiratory syncytial virus and SARS-Cov, but not adenovirus or rhinovirus.[2] A dentifrice containing 10% sodium benzoate and 0.3% dichlorobenzyl alcohol maintains antimicrobial activity for 5 to 10 minutes after brushing.[3]
^Ostergaard E (1994). "Evaluation of the antimicrobial effects of sodium benzoate and dichlorobenzyl alcohol against dental plaque microorganisms. An in vitro study". Acta Odontol Scand. 52 (6): 335–45. doi:10.3109/00016359409029031. PMID7887143.