histamine human immunoglobulin + loratadine

A combination drug consisting of **histamine human immunoglobulin** and **loratadine**. Loratadine is a second-generation antihistamine that acts as an inverse agonist at the histamine H1 receptor, blocking the effects of endogenous histamine and reducing symptoms of allergic rhinitis, urticaria, and other allergic dermatological conditions[3]. Loratadine additionally inhibits histamine release from human basophils[1]. Histamine human immunoglobulin is an immunoglobulin-based preparation that contains human antibodies directed at histamine; such preparations are generally used in immunomodulation and may modulate allergic or immune responses.