The respiratory tract is lined with a mucous membrane, which ensures full functional ability of the respiratory organs. Glandular cells and so-called ciliary hair (cilia) are embedded in the mucous membrane of the upper respiratory tract. The glandular cells produce a liquid (secretion), which warms and moistens the air that is breathed in (approx. 10 000 litre daily) and, at the same time, absorbs dust, dirt, germs etc. The cilia are in constant motion and transport absorbed foreign particles, as like on a conveyor belt, back out or - via the throat - to the stomach. When the mucous membranes dry out, their natural protective function is no longer ensured. Nisita contains the salts sodium chloride and sodium bicarbonate. The salt content is tailored to the needs of the nasal mucous membrane and aids the regeneration thereof. Sodium and chloride are responsible, being major ions, for maintaining osmotic pressure and therefore various bodily functions. Owing to their hygroscopic effect, they create a moist environment in the nose. As a buffer system, sodium bicarbonate keeps the pH faintly alkaline, thus enabling the cilia to function properly. The functions of the nasal mucous membrane are thus ideally boosted. The cleaning function of the mucous membrane is aided. Existing crusts and scabs are gently softened. Symptoms such as itching, burning and sneezing are able to be alleviated. Thanks to the liquefying effect of Nisita Nasal Ointment and Nasal Spray, stubborn secretion is able to drain off more easily and nasal breathing is improved. Made in Germany by Engelhard Arzneimittel. The package may come originally produced in Bulgarian language. Read package leaflet before use.