Strepsils - Strawberry Sugar Free Lozenges (16). Strepsils Strawberry Sugar Free Lozenges provide fast, soothing and effective relief from the discomfort of sore throats.. Each lozenge contains a combination of 2 anti-bacterials to help kill the bacteria which can cause sore throats and mouth infections.. Strepsils Strawberry Sugar Free Lozenges are suitable for use by people with Diabetes.. Active Ingredients: 2,4-Dichlorobenzyl alcohol 1.2mg, Amylmetacresol 0.6mg.