Title:Modulation of Drug Crystallization and Molecular Interactions by Additives in Solid Dispersions for Improving Drug Bioavailability
Volume: 25
Issue: 18
Author(s): Phuong H.L. Tran, Wei Duan, Beom-Jin Lee and Thao T.D. Tran*
Affiliation:
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City,Vietnam
Keywords:
Modified-solid dispersion, poorly water-soluble drug, additive, pH-modifier, surfactant, swellable polymer, hydrophobic
polymer.
Abstract:
Background: An increase in poorly water-soluble drugs makes the design of drug delivery systems
challenging.
Methods: Currently, a number of prospective solid dispersions have been investigated with potential applications
for delivering a variety of poorly water-soluble drugs. A number of traditional solid dispersions and modifiedsolid
dispersions offer attractive advantages in the fabrication, design and development of those drugs for effective
therapeutics.
Results: Although traditional solid dispersions can produce a higher release rate, resulting in higher bioavailability
compared to conventional dosage forms, this method is not always a promising approach. Modified-solid
dispersion has demonstrated both the ability of its polymers to transform drug crystals into amorphous forms and
molecular interactivity, thereby improving drug dissolution rate and bioavailability, especially with tough drugs.
However, the classification of modified-solid dispersion, which guides the selection of the right strategy in solid
dispersion preparation, remains ill-defined.
Conclusion: This review focused on effective strategies in using additives in solid dispersion for improving drug
bioavailability.