2. College of Pharmacy, Western University of Health Sciences, 309, East 2 Street, Pomona, CA 91766 Ph: 909-469-5550 Fax: 909-469-5600 Email: sprabhu(at)westernu.edu Abstract The purpose of this research was to prepare and characterize a novel lyophilized chitosan-based hydrogel complex (termed CS-M) for controlled drug delivery applications using a highly water soluble model drug, niacinamide....