Sustained stomach specific delivery of piroxicam from floating emulsion polyelectrolyte complex beads

摘要

This study presents development of floating emulsion polyelectrolyte complex (PEC) beads based on gellan-chitosan PEC and Gelucire 39/01 and 50/13 without using any chemical crosslinker, and release from developed beads of piroxicam (PRM) in 0.1 M HC1 (pH 1.2). Developed beads showed excellent buoyancy, significantly improved encapsulation efficiency and sustained release of PRM compared to floating gellan-chitosan beads bearing PRM. Thus emulsion PEC beads may form a potential stomach site specific drug delivery system for PRM delivery.