Covonia Double Impact Cough Drops are powerful lozenges which have been specially formulated. Covonia Double Impact Cough Drops have two coloured sides, each one formulated to provide a different action. Two halves of our non - medicated cough drops work together; the brown side contains warming flavour whilst the other clear side contains powerful menthol vapours. Double the impact – in one traditionally made pastille.These cough drops are perfect to carry around for those on the go! Covonia’s Double Impact Cough Drops are suitable for a range of needs; vegetarians and those with coeliac disease, meeting diverse dietary requirements. Covonia's Double Impact Cough Drops offer a variety of flavours.