Urticaria: A comprehensive review

Second-generation antihistamines are considered first-line agents in the treatment of chronic urticaria because of their safety and efficacy profile. Some patients require higher doses of H1 antihistamines alone or in combination with other classes of medications, including H2 antihistamines, leukotriene receptor antagonists, or first-generation H1 antihistamines. One major therapeutic advance has been omalizumab, a humanized monoclonal anti–immunoglobulin E that was recently approved by the US Food and Drug Administration for the treatment of chronic urticaria that is unresponsive to H1 antagonists.

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