May 2009 Volume 16 Issue 2

Investigation of the Dissolution Characteristics of Nifedipine Extended-Release Formulations Using USP Apparatus 2 and a Novel Dissolution Apparatus Grzegorz Garbacz1, Henning Blume2, and Werner Weitschies1 1Department of Biopharmaceutics and Pharmaceutical Technology, Ernst Moritz Arndt University of Greifswald, Greifswald, Germany 2SocraTec R&D GmbH, Oberursel, Germany The Evaluation of Eudragit Microcapsules Manufactured by Solvent Evaporation Using USP Apparatus 1 Sandile M. Khamanga, Natalie Parfitt, Tsitsi Nyamuzhiwa, Hendrina Haidula, and Roderick B. Walker Faculty of Pharmacy, Rhodes University, Grahamstown, South Africa Investigation of the Effect of Different Flow-Through Cell Designs on the Release of Diclofenac Sodium SR Tablets Laila H. Emara1, Nesrin F. Taha1, and Nadia M. Mursi2 1Industrial Pharmacy Laboratory, Division of Pharmaceutical Industries, National Research Centre, Egypt 2Department of Pharmaceutics, Faculty of Pharmacy, Cairo University, Egypt Physicochemical Properties of Various Shellac Types Y. Farag and C. S. Leopold University of Hamburg, Institute of Pharmacy, Department of Pharmaceutical Technology, Hamburg, Germany Modeling and Comparison of Dissolution Profiles of Diltiazem Modified-Release Formulations D. Samaha, R. Shehayeb, and S. Kyriacos Department of Pharmaceutical Sciences, School of Pharmacy, Lebanese American University, Byblos, Lebanon Commentary: Towards Physico-Relevant Dissolution Testing: The Importance of Solid-State Analysis in Dissolution Jaakko Aaltonen1,2 and Thomas Rades1 1School of Pharmacy, University of Otago, Dunedin, New Zealand 2Department of Pharmaceutics, University of Kuopio, Kuopio, Finland CRS/AAPS Joint Workshop on Critical Variables in the In Vitro and In Vivo Performance of Parenteral Sustained-Release Products Michael J. Rathbone1, Marilyn N. Martinez2, Mai Huynh2, and Diane Burgess3 1School of Pharmacy, Gold Coast Campus, Griffith University, Queensland , Australia 2US Food and Drug Administration, Center for Veterinary Medicine, Rockville, MD, USA 3University of Connecticut, Storrs, CT, USA Question & Answer Section Margareth Marques and William Brown United States Pharmacopeia, Rockville,MD