Almansour, M.A., Aldosary, M.S., Almegbel, M.T., Alsubaie, S.A. and Alzahrani, A.M. 2023. Recent innovations in oral drug delivery systems: Examining current challenges and future opportunities for enhanced therapeutic efficacy. International journal of health sciences. 7, S1 (Jan. 2023), 3352–3370. DOI:https://doi.org/10.53730/ijhs.v7nS1.15041.