This webinar will center on the use of laser diffraction as a technique in characterizing nebulizers, and how it is helpful in understanding the delivery of the drug product. The presentation will also cover the application of automated imaging technology in achieving OINDP bioequivalence and how this technique is complementary to laser diffraction. Finally there will be a case study which highlights the use of these two technologies in characterizing “Pulmicort respules” as a nebulizer formulation.