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Development of 3D-Printed Gel-Based Supplement-Containing Tablets with Tailored Release Profiles for Neurological Pain Management

J. Kazlauskaite,Inga Matulytė,Jurga Bernatonienė

Published 2025 in Pharmaceutics

ABSTRACT

Background/Objectives: Neuropathic pain, resulting from damage or pathology affecting the somatosensory nervous system, is a prevalent form of chronic pain that significantly impacts quality of life. Combined therapies are often utilised to manage this condition. Three-dimensional printing (3DP) offers a promising approach for personalising medication doses and dosage forms to meet individual patient needs. Methods: In this study, a formulation suitable for 3D printing was developed using magnesium citrate, uridine monophosphate, vitamins B3 (niacin), B6 (pyridoxine), B12 (cobalamin), B9 (folic acid), and spermidine to create a novel gel-based oral tablet for the targeted treatment of neurological pain. The antioxidant potential of the active pharmaceutical ingredients (APIs) was assessed using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) methods. The physical properties of the tablets were evaluated using a texture analyser, while the in vitro release profiles were determined by high-performance liquid chromatography (HPLC). Results: Results demonstrated that pectin–gelatin tablets hardened over time, with higher citric acid concentrations further enhancing this effect. Formulation AVII exhibited good hardness and low stickiness. Formulation AV, however, showed poor performance across all physical parameters and lacked sufficient structural integrity for practical application. While uridine monophosphate, B12, and B9 showed no significant differences in the release profiles of the tablets, spermidine, B6, and B3 displayed statistically significant variations. Specifically, AVII outperformed AV in terms of spermidine and B6 release, and AV showed a higher release of B3 compared to AV. Conclusions: The AVII tablet demonstrates potential for use in combined therapy targeting neurological pain disorders.

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