To compare the added effectiveness of ketotifen along with traditional H1 anti histamines for the symptomatic improvement of chronic idiopathic urticaria. J Pak Assoc Dermatol [Internet]. 2022 Mar. 29 [cited 2026 Jul. 28];31(4):665-71. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/1883