ArticleAAPS PharmSciTech2015
Interpolyelectrolyte complexes of Eudragit® EPO with hypromellose acetate succinate and Eudragit® EPO with hypromellose phthalate as potential carriers for oral controlled drug delivery.
Article in AAPS PharmSciTech, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- From prediction to performance:International journal of pharmaceutics: X · 2026Article
- Unlocking the potential of alkaline polymethacrylates via ionic crosslinking in amorphous solid dispersions.International journal of pharmaceutics: X · 2026Article
- In Vitro Larvicidal Efficacy of a Fipronil-Based Nanoixodicide AgainstTropical medicine and infectious disease · 2025Article
- Design, Development, and Characterization of High Drug-Loaded Drug-Drug-Polymer Ternary Amorphous Solid Dispersions.AAPS PharmSciTech · 2025Article
- pH-Responsive Inorganic/Organic Nanohybrids System for Controlled Nicotinic Acid Drug Release.Molecules (Basel, Switzerland) · 2022Article
- Polyelectrolyte Matrices in the Modulation of Intermolecular Electrostatic Interactions for Amorphous Solid Dispersions: A Comprehensive Review.Pharmaceutics · 2021Review
- Preparation of Curcumin-EudragitMolecules (Basel, Switzerland) · 2021Article
- Pollen grains as a novel microcarrier for oral delivery of proteins.International journal of pharmaceutics · 2018Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of this study was to compare a novel controlled release tablet formulation based on interpolyelectrolyte complex (PEC). Interpolymer interactions between the countercharged polymers like Eudragit® EPO (polycation) and hypromellose acetate succinate (polyanion) and Eudragit® EPO and hypromellose phthalate (polyanion) were investigated with a view to their use in per oral controlled release drug delivery systems. The formation of inter-macromolecular ionic bonds between cationic polymer and anionic polymer was investigated using Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry. The FT-IR spectra of the tested polymeric matrices are characterized by visible changes in the observed IR region indicating the interaction between chains of two oppositely charged copolymers. The performance of the in situ formed PEC as a matrix for controlled release of drugs was evaluated, using acetaminophen as a model drug. The dissolution data of these matrices were fitted to different dissolution models. It was found that drug release followed zero-order kinetics and was controlled by the superposition of the diffusion and erosion. These profiles could be controlled by conveniently modifying the proportion of the polymer ratio, polymer type, and polymer concentration the in the tablets.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.