29. July 2015 Incorporating QbD Excipient Variability into Pharmaceutical Drug Product Design and Development: Perspective from an Excipient User By: Joseph Kushner, IV, Ph.D.Senior Principal ScientistDrug Product DesignWorldwide Research & Development Pfizer Inc More tagPlaceholderTags: Qbd, excipient, variability, asia, jul2015, biopharma