Pain relief for sore throatseach lozenge containsan active ingredient hexylrescorcinol providing a double actionanaesthetic to relieve pain and discomfortantiseptic to fight the infections which can cause sore throatsreference number sp uk 146 10hexylresorcinolstrepsils174 extra strength blackcurrant lozenges contain an active ingredient for use in throat medications it is used for the symptomatic relief of sore throat and