Orally Disintegrating Films: Innovations, Advancements, and Challenges

The recent trend in pharmaceutical research leans towards the development of innovative patient-friendly dosage forms to improve the efficacy of the currently existing drugs.An outcome of such research efforts is the advent of orally disintegrating films (ODFs), an innovative 'paper-thin' dosage form that rapidly disintegrates and dissolves into the oral cavity.Such a formulation not only facilitates intraoral absorption, thereby bypassing first-pass metabolism and enhancing bioavailability, but also serves as a preferred dosage form for pediatric and geriatric patients who are susceptible to choking.The design and development of ODFs constitute the core of this review article.Formulation design of ODFs inculcate numerous components ranging from disintegrants, taste-masking agents, and film-forming polymers.Various manufacturing techniques, such as hot-melt extrusion, solvent casting, and the rolling method, are employed in the production of ODFs.Innovations in the ODF technology, such as multi-layered and extended-release films, are also highlighted in this review, emphasizing their potential to improve drug bioavailability.Moreover, common challenges encountered during the formulation of ODFs, such as maximizing drug loading without compromising disintegration time, are also effectively addressed.Additionally, insights from recent clinical studies and patented technologies, like VersaFilm and Pharmfilm, are explored.Future trends point to the potential of personalized medicine through innovations like 3D printing and electrospinning, further expanding the therapeutic applications of these dosage forms.