Examination of Polymer Swelling and API Release of Controlled Release Formulations at the Solid-Liquid Interface by UV Surface Imaging

Category
Novel Development in Formulation, Analytical Chemistry, and Processing in Animal Health and Preclinical Sciences
Year
2014
Authors
Christopher A. Zordan, Xujin Lu
Institutions
Analytical & Bioanalytical Development, Bristol-Myers Squibb, New Brunswick, NJ
Summary

Understanding API-excipient interaction is vital for designing robust pharmaceutical formulations. Swelling polymer matrices for delayed drug release are a usual methodology in the design of controlled release formulations. This work describes measurement of polymer swelling behaviors and API release properties at the solid-liquid interface in an effort to elucidate polymer-API interactions that affect drug dissolution.