Development of 3D-Printed Chewable Gummy Tablets with Adjustable Ondansetron Content for the Treatment of Pediatric Patients

<b>Background/Objectives</b>: Semi-solid extrusion (SSE) 3D printing is an innovative method utilized for preparation of various drug dosage forms, allowing for individualization by means of incorporation of one or multiple drugs in adjustable doses. SSE provides repeatable results and can be conveniently utilized in small batch production. This study aimed to develop a chewable formulation for pediatric patients which could be easily printed using SSE. <b>Methods</b>: Pectin and gelatin were utilized as gel-forming agents, polyvinylpyrrolidone as a thickener, glycerol as a plasticizer, citric acid as a pH modifier, and potassium sorbate as a conserving agent. Obtained tablets were evaluated for mass and content homogeneity and their mechanical properties compared to the long-time market standard for gummies. <b>Results</b>: Gummy formulation with texture properties comparable to the selected standard and mass homogeneity were prepared. The linear correlation between the model size and ondansetron content was proven. <b>Conclusions</b>: SSE 3D printing thus presents a suitable method of gummy formulation production with possible adjustment of dose by defining the object size.