Strepsils Extra Strength Blackcurrant Lozenges soothe and calm sore throats- whilst fighting infections. They provide fast-acting relief from the irritating, burning sensation of a sore throat. These tasty blackcurrant pastilles provide effective pain relief, numbing and soothing the back of the throat so it no longer feels irritated. The active ingredient- Hexylresorcinol- is both an antiseptic and an anaesthetic. The antiseptic fights bacteria and infections. This helps speed up the recovery process- so your sore throat starts to feel better, without the risk of becoming infected again. The anaesthetic provides pain relief, whether your sore throat is a recurring problem or a symptom of a cold or flu.