W. S. Mahmood and B. A. Kamal, “Preparation and In Vitro Permeation of Chlopheniramine Maleate (CPM) from Gel through Rat Skin”, Iraqi Journal of Pharmaceutical Sciences , vol. 17, no. 2, pp. 67–73, Mar. 2017, doi: 10.31351/vol17iss2pp67-73.