Bioequivalence of a Test Formulation P. E. Petrochenko, M. S. Absar, Y. Wu, S. Y. Wong, S. Choi, J. Zheng U.S. Food and Drug Administration Purpose Globule size distribution (GSD) of cyclosporine ophthalmic emulsion is a critical physicochemical attribute that influences dru release, turbidity, viscosity and consequently bioavailability of the formulation. Hence, a Test cyclosporine ophthalmic ...