**5.1 Oral film (oral thin film)**

Oral films are composite polymeric matrices that may be employed as drug delivery platforms effectively. To generate elegant drug delivery platforms, these polymeric matrices can be made up of a variety of components, however, hydrophilic polymers are frequently in the centre. The European Medicines Agency (EMA) and the Food and Drug Administration (FDA) both refer to a thin film that rapidly dissolves in the oral cavity as orodispersible film. Oral films originated as unique breath-freshening formulations, but they swiftly evolved to satisfy several commercial needs, including a convenient and easy-to-swallow medicine delivery method [15].
