Abstract
Antihistamines are a class of drugs primarily used to alleviate symptoms of allergic reactions by blocking the effects of histamine, a substance involved in allergic responses. These drugs have become essential in treating conditions such as hay fever, urticaria, and allergic rhinitis. Recent advancements in antihistamine pharmacology have led to the development of second-generation antihistamines, which are designed to provide effective symptom relief with fewer sedative effects. This article explores the pharmacology of antihistamines, their therapeutic applications, and the ongoing efforts to enhance their efficacy and safety profiles in clinical settings.
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