Research Article

Biomaterial-Derived Calcium Carbonate Nanoparticles for Enteric Drug Delivery

Figure 6

Gastric transit study in rabbits using tablets based on formulation F4 (a) immediately, (b) 1 hour, (c) 2 hours, (d) 3 hours, and (e) 4 hours after oral administration. Red ellipses in (a), (b), and (c) and arrows in (b), (c), and (d) show positions of the tablet, and dashed lines outline the rabbit stomach. : location of the rabbit duodenum.