Used to relieve symptoms of allergies such as sneezing, runny nose, itchy or watery eyes, and itching of the nose or throat. Commonly found in antihistamine medications for hay fever and other respiratory allergies. Also effective in treating itching and redness caused by hives. Works quickly and lasts for up to 24 hours with minimal drowsiness compared to older antihistamines. Often used in both adults and children for fast, short-term and long-term management of allergic conditions.