期刊
EXPERT OPINION ON DRUG DELIVERY
卷 20, 期 1, 页码 115-130出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17425247.2023.2158183
关键词
Alginate; drug delivery; matrix tablet; sustained release
This review provides an overview of the applications of alginate in solid dosage form formulations, with a focus on its role in oral sustained release formulations. The mechanisms of drug release from alginate matrices, as well as the influence of alginate properties and formulation components on drug release, are discussed. In addition, modifications of alginate to improve its ability to regulate drug release are also explored.
IntroductionAs a nature-derived polymer with swelling and gelling properties, alginate has found wide biopharma-relevant applications. However, there is comparatively limited attention on alginate in tablet formulations. Therefore, this review aimed to provide an overview of the applications of alginate in solid dosage form formulations.Areas coveredThis review outlines the role of alginate for oral sustained release formulations. For better insights into its application in drug delivery, the mechanisms of drug release from alginate matrices are discussed alongside the alginate inherent properties and drug properties. Specifically, the influence of alginate properties and formulation components on the resultant alginate gel and subsequent drug release is reviewed. Modifications of the alginate to improve its properties in modulating drug release are also discussed.Expert opinionAlginate-based matrix tablets is useful for sustaining drug release. As a nature-derived polymer, batch consistency and stability raise some concerns about employing alginate in formulations. Furthermore, the alginate gel properties can be affected by formulation components, pH of the dissolution environment and the tablet matrix micro-environment pH. Conscientious efforts are pivotal to addressing these formulation challenges to increase the utilization of alginate in oral solid dosage forms.
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