Controlled Drug Release from Sodium Alginate Film Dosage Forms

Abstract
Film dosage forms (FDs) prepared using water-soluble polymers can efficiently deliver drugs to local disease sites. In the present study, we prepared FDs by incorporating a model drug rebamipide into a film made of sodium alginate (Alg-Na), comprising an alginic acid hydrolysate and α-L-guluronic acid (G) block (G-block), as the film base. The drug immediately dissolved from the FDs prepared with 3%–5% Alg-Na, and the amount Alg-Na in the formulation scarcely affected the drug dissolution profile. The drug dissolution rate decreased, according to the increment in the amount of G-block incorporated into the FD, as the aqueous solubility of the drug decreased after G-block incorporation. The rate did not change after the sodium salt of the G-block was added to the film base. Rebamipide FDs prepared with Alg-Na may be effective for treating oral mucositis, as the drug release rate from FDs can be controlled by modifying the composition of the film base.

Keywords
Film Dosage Form, Alginic Acid Hydrolysate, Rebamipide, Controlled Drug Release, Sodium Alginate

Cite this paper
Yoshifumi Murata, Sayaka Kimura, Kyoko Kofuji, Chieko Maida, Controlled Drug Release from Sodium Alginate Film Dosage Forms , SCIREA Journal of Materials. Volume 6, Issue 2, April 2021 | PP. 12-24. 10.54647/materials43126

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