Herbal extracts contained in this preparation have a possitive effect on the upper respiratory tract and contribute to increase of resistance against viruses and bacteria. In a folk medicine these herbs are used as a support in the course of colds and coughs. They contribute to calm down the irritation in the throat and can contribute to relief a hoarseness and a sore throat. Besides these extracts the syrup also contains vitamin C, which positively affects the immune system and thus the immunity of the organism.