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Polymer Matrix and Manufacturing Methods in Solid Dispersion System for Enhancing Andrographolide Solubility and
Pratchaya Tipduangta1,2, Sunee Chansakaow1,2, Pimpimon Tansakul2,3
1Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
Solid dispersion (SD) techniques significantly boost andrographolide (ADG) solubility and absorption. Spray drying with Soluplus demonstrated the most effective enhancement for ADG-based drug delivery systems.
Area of Science:
- Pharmaceutical Technology
- Drug Delivery Systems
- Medicinal Chemistry
Background:
- Andrographolide (ADG) exhibits poor aqueous solubility and low oral bioavailability, limiting its therapeutic efficacy.
- Developing strategies to enhance ADG's solubility and absorption is crucial for its pharmaceutical application.
Purpose of the Study:
- To systematically review the application of solid dispersion (SD) techniques for improving andrographolide (ADG) solubility and absorption.
- To identify optimal polymers and methods for creating effective ADG-SD formulations.
Main Methods:
- Comprehensive literature search of electronic databases (PubMed, Web of Science, Scopus, Embase, ScienceDirect) up to November 2023.
- Systematic review and qualitative data synthesis of retrieved studies on ADG solubility and absorption in SD formulations.
- Independent data extraction and review by two researchers.
Main Results:
- Solid dispersion (SD) significantly increased ADG solubility (up to 4.7-fold) and accelerated drug release (T1/2 < 5 min).
- SD formulations improved ADG absorption, indicated by higher Cmax and AUC, and reduced Tmax.
- Soluplus-based SDs and spray drying technique showed superior performance in enhancing ADG solubility and absorption.
Conclusions:
- Solid dispersion (SD) techniques, particularly employing Soluplus as a polymer and spray drying as a method, are highly effective in enhancing andrographolide (ADG) solubility and absorption.
- These findings provide critical insights for the rational design of advanced ADG-solid dispersion matrices for improved drug delivery.
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