Bioadhesives/Mucoadhesives in Drug Delivery to the Gastrointestinal Tract

Bioadhesives in drug delivery systems have recently gained interest among pharmaceutical scientists as a means of promoting dosage form residence time as well as improving intimacy of contact with various absorptive membranes of the biological system.1 Besides acting as platforms for sustained release dosage forms, bioadhesive polymers can themselves exert some control over the rate and amount of drug release, and thus contribute to the therapeutic advantage of such systems.