TY - CHAP M1 - Book, Section TI - Antihistamines A1 - Tharp, Michael D. A2 - Kang, Sewon A2 - Amagai, Masayuki A2 - Bruckner, Anna L. A2 - Enk, Alexander H. A2 - Margolis, David J. A2 - McMichael, Amy J. A2 - Orringer, Jeffrey S. PY - 2019 T2 - Fitzpatrick's Dermatology, 9e AB - AT-A-GLANCEH1 antihistamines are first-line therapy for chronic idiopathic and physical urticarials.H1 agents may be useful in treating conditions with histamine-associated pruritus.Limited evidence supports the use of H1 in the treatment of atopic dermatitis.Certain special patient populations, including children, the elderly, and patients with renal or hepatic impairment, may require dosage adjustments when using antihistamines.H2 antihistamines may be a useful adjunct to H1 antihistamine therapy in refractory cases of chronic idiopathic urticaria/angioedema. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - dermatology.mhmedical.com/content.aspx?aid=1161343969 ER -