Antihistamine Medicines

Antihistamine medicines are a class of drugs used to treat symptoms caused by the body’s release of histamine, a chemical involved in allergic reactions. They work by blocking the action of histamine at H1 receptors, relieving allergy symptoms such as sneezing, itching, runny nose, watery eyes, and hives (urticaria). Antihistamine medicines are commonly used, effective drugs that relieve mild to moderate allergy symptoms by blocking histamine. They are available in sedating (first-generation) and non-sedating (second-generation) forms, and are a mainstay for allergy management, as well as itching and some forms of rash. Always follow dosing instructions and consult a healthcare professional if you have questions.