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Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
Published on: July 23, 2016
Microparticulates for ophthalmic drug delivery
1Allergan Pharmaceuticals, Irvine, California.
Journal of Ocular Pharmacology
|January 1, 1994
Summary
Microparticulate drug delivery systems offer sustained release in the eye for ophthalmic applications. Addressing formulation challenges is key to realizing their full potential for topical and intraocular treatments.
Area of Science:
- Ophthalmology
- Pharmaceutics
- Materials Science
Background:
- Microparticulates are polymeric drug carriers designed for sustained release in ocular tissues.
- Various formulations exist, including erodible, mucoadhesive, and ion-exchange microparticles for ophthalmic drug delivery.
Purpose of the Study:
- To review recent advancements in microparticulate ophthalmic drug delivery systems.
- To discuss the potential and challenges associated with these advanced drug delivery systems for ocular applications.
Main Methods:
- Review of existing literature on microparticulate drug delivery for ophthalmic applications.
- Analysis of different microparticulate formulations and their release mechanisms (diffusion, degradation, ion-exchange).
Main Results:
- Microparticulate systems demonstrate sustained drug release in the eye, with potential for up to two weeks post-injection.
- Both topical and intraocular administration routes are viable, with drug release influenced by particle properties and ocular environment.
Conclusions:
- Microparticulate drug delivery holds significant promise for sustained ophthalmic therapy.
- Key challenges include stable suspension formulation, uniform dosing, efficient drug entrapment, and scalable manufacturing.
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