Strepsils Sore Throat & Cough. Did you know research shows that 1 in 5 adults get a sore throat & cough at the same time in a year? Thinking about that the team at Strepsils have produced Strepsils Sore Throat & Cough. A combination of two antiseptics (2,4-Dichlorobenzyl alcohol 1.2mg, Amylmetacresol 0.6mg) and Levomenthol (a mild local anaesthetic) provide you with dual action for dual relief from your sore throat and irritating coughs