Xylo Acino, which is intended for use in the nose, constricts the blood vessels there, resulting in decongestion of the mucosa in the nose and the surrounding area of the nasopharynx. Xylo Acino thus aids breathing through the nose during colds and rhinitis. The effect is felt within a few minutes and lasts for up to ten hours. Xylo Acino does not impair the function of the ciliated epithelium.