Fexofenadine Hydrochloride

Fexofenadine hydrochloride is a non-drowsy, second-generation antihistamine used to relieve allergy symptoms like sneezing, itching, runny nose, and hives (chronic idiopathic urticaria) by blocking histamine's effects, without causing significant drowsiness because it doesn't easily cross the blood-brain barrier, making it a vital medication for hay fever and skin allergies. It's available over-the-counter (OTC) or by prescription, with forms including tablets and suspensions, and generally taken with water, avoiding fruit juices like grapefruit juice, as it's a metabolite of terfenadine