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Published on: February 3, 2023
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Improving drug solubility for oral delivery using solid dispersions
1Johann Wolfgang Goethe University, Frankfurt am Main, Germany.
Summary
Improving drug solubility is crucial for formulation development. New technologies like hot melt extrusion are reviving interest in solid solutions for poorly soluble drugs.
Area of Science:
- Pharmaceutical Sciences
- Drug Delivery
- Materials Science
Background:
- Poor drug solubility is a major challenge in pharmaceutical formulation.
- Combinatorial chemistry and high-throughput screening have increased the number of poorly water-soluble compounds.
- Despite their potential, solid solutions have limited marketed products due to scale-up issues.
Purpose of the Study:
- To provide a comprehensive overview of drug solubility enhancement techniques.
- To discuss the historical context and definitions of various drug delivery systems.
- To explore the production, carriers, and characterization methods for solid dispersions.
Main Methods:
- Review of historical data and scientific literature.
- Definition and classification of eutectic mixtures, solid dispersions, and solid solutions.
- Discussion of manufacturing technologies, including hot melt extrusion.
- Overview of characterization techniques for solid dispersions.
Main Results:
- Solid solutions offer significant potential for enhancing drug solubility.
- New manufacturing technologies, such as hot melt extrusion, are enabling scale-up of solid dispersion production.
- A variety of carriers and characterization methods are available for solid dispersion development.
Conclusions:
- Solid dispersions represent a promising approach to overcome poor drug solubility.
- Advancements in manufacturing technologies are facilitating the wider application of solid solutions.
- Further research into carriers and characterization is essential for successful solid dispersion formulation.
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