Advances in gastro retentive drug-delivery systems.

Introduction: In recent years, various technological improvements have been achieved and new concepts have been developed, in the area of controlled release solid oral dosage forms, especially for products where an extended time of release is associated with an extended gastric retention time. These Gastro Retentive Systems have been quite investigated because they can improve the in-vivo performance of many drugs.

Areas Covered: This paper summarizes current approaches in the research and development of gastro retentive dosage forms from recent literature.