Related Experiment Video
Updated: May 30, 2026
04:09
Development and Characterization of Fusidic Acid-Loaded Alginate-Aloe vera Based Hydrogel Film
Published on: December 13, 2024
Recent advances in materials for extended-release antibiotic delivery system
Ping Gao1, Xin Nie, Meijuan Zou
1School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, China.
The Journal of Antibiotics
|August 4, 2011
Summary
Extended-release antibiotic formulations maintain drug levels above the minimum inhibitory concentration (MIC), enhancing efficacy and reducing resistance. These advanced drug delivery systems also improve patient compliance.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Nanotechnology
Background:
- Conventional antibiotics with short half-lives require frequent dosing, risking sub-inhibitory concentrations that promote antibiotic resistance.
- Extended-release (ER) formulations offer a solution by maintaining therapeutic drug levels over time, maximizing efficacy and improving patient compliance.
Purpose of the Study:
- To review the evolution of materials used in extended-release antibiotic formulations.
- To highlight the application of nanotechnology in developing novel antibiotic delivery systems.
- To provide an overview of current and clinical-stage ER antibiotic products.
Main Methods:
- Literature review focusing on materials science, polymer chemistry, and nanotechnology in drug delivery.
- Analysis of hydrophilic matrix materials, biodegradable polymers, and tailored composite carriers.
- Examination of nanoparticle-based antibiotic delivery systems.
Main Results:
- Hydrophilic matrix formers like hydroxypropylmethylcellulose are widely used in ER systems.
- Biodegradable polymers show significant potential due to their biocompatibility.
- Nanotechnology, particularly using polymers and inorganic nanocarriers, is increasingly important for extended antibiotic delivery.
Conclusions:
- Extended-release formulations are crucial for optimizing antibiotic therapy, combating resistance, and enhancing patient compliance.
- Ongoing research into novel materials and nanotechnology promises more effective and targeted antibiotic delivery systems.
- Several ER antibiotic products have demonstrated clinical benefits or are in clinical trials.
Related Concept Videos
01:19Modified-Release Drug Delivery Systems: Overview
Modified-release dosage forms are designed to address the limitations of drugs with short biological half-lives. These forms maintain stable therapeutic drug concentrations over extended periods, reducing the need for frequent dosing. A consistent drug level helps minimize peak-trough fluctuations, which can reduce adverse effects, lower the risk of drug resistance, and improve overall treatment effectiveness.One common type of modified-release form is the extended-release (ER) formulation. ER...
01:11Oral Drug Delivery Systems: Delayed-Release Systems
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...
01:26Oral Drug Delivery Systems: Continuous-Release Systems
Continuous-release drug delivery systems offer a strategic approach to maintaining therapeutic drug levels over extended periods following oral administration. By modulating the release rate of active pharmaceutical ingredients, these systems minimize fluctuations in plasma concentrations, which enhances clinical efficacy and reduces the need for frequent dosing. Such characteristics make them particularly advantageous in managing chronic diseases where patient adherence and stable drug...
01:27Drug Delivery Systems: Different Types
Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...
01:23Modified-Release Drug Delivery Systems: Classification
Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
01:22Modified-Release Drug Delivery Systems: Drug Release Characteristics
Drug release from modified-release dosage forms is designed to achieve specific therapeutic effects by controlling the rate and extent of drug release. The classification of these drug release systems is based on key pharmacokinetic assumptions: drug disposition follows first-order kinetics, drug release is the rate-limiting step in absorption, and the released drug is rapidly and completely absorbed.There are four major models of drug release patterns. The first model is the slow zero-order...