What are Iglu Sugar Free Pastilles? Iglu Sugar Free Pastilles 24\'s ease the discomfort and brings soothing relief to mouth ulcer and sore gums. Iglu pastilles can be taken by adults, the elderly and children over the age of 3 years of age. Iglu pastilles contain the active ingredients Benzalkonium Chloirde Solution and Compund Benzoin Tincture which have antiseptic properties. One of the excipients in lglu Pastilles is Compound Benzoin Tincture which contains ethanol. How to take Iglu Sugar Free Pastilles Put one pastille in your mouth and allow to dissolve slowly to help fight infection and soothe discomfort. Only 1 pastille should be used at a time and no more than 8 pastilles should be used in a 24 hour period.