Covonia Double Impact Cough Lozenges Strong Original Sugar Free gives your throat an instant warming sensation and powerful acting menthol flavour. It provides instant double action for a healing a sore throat by first warming your throat and then clearing it of any congestion and blockages. Suitable for vegetarians and gluten free. Covonia Double Impact Cough Lozenges Strong Original Sugar Free gives your throat instant attention and care. It pr s instant dual action that soothes your throat and clears it of any congestive buildup. Dual action Covonia Lozenges are formulated in two halves. The brown side contains a warming flavour, while the white side helps clear your airways. How it works These warming, flavoured lozenges have double action properties that are both warming and clearing. They first sooth your mouth and throat with icy menthol then clear out any congestion and blockages. User friendly This product is gluten free and is suitable for vegetarians. It is hand-made the traditional way in Yorkshire.