For fast, soothing and effective relief from the discomfort of sore throats and minor mouth infections. Strepsils Sore Throat Relief Sugar Free Lemon Flavour Lozenges contains two antibacerial agents to help kill bacteria that can cause sore throats and mouth infections. If you prefer a lozenge without sugar, try Strepsils Sugar Free Lemon. These tasty little lozenges contain effective antibacterial agents (Dichlorobenzyl alcohol 1.2mg and Amylmetacresol 600µg) that relieve discomfort of a sore throat and minor mouth infections.