Functional physico-chemical, ex vivo permeation and cell viability characterization of omeprazole loaded buccal films for paediatric drug delivery

Buccal films were prepared from aqueous and ethanolic Metolose gels using the solvent casting approach (40 °C). The hydration (PBS and simulated saliva), mucoadhesion, physical stability (20 °C, 40 °C), in vitro drug (omeprazole) dissolution (PBS and simulated saliva), ex vivo permeation (pig buccal mucosa) in the presence of simulated saliva, ex vivo bioadhesion and cell viability using MTT of films were investigated. Hydration and mucoadhesion...