Fexofenadine belongs to a class of medications known as second-generation antihistamines. It works by blocking the effects of histamine, a natural substance released by the body during an allergic reaction. By inhibiting histamine, fexofenadine helps alleviate symptoms such as sneezing, runny nose, itchy or watery eyes, and itching of the nose or throat.

Fexofenadine is designed to provide non-drowsy relief, allowing individuals to manage their allergy symptoms while maintaining their daily activities. Most people experience minimal side effects, although mild drowsiness or other mild reactions may occur in some individuals. If drowsiness occurs, it is advisable to use caution and avoid activities that require mental alertness until the effects subside.