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Optimization of liposomal encapsulation for ceftazidime for developing a potential eye drop formulation

Chamari Wijesooriya1, Marianna Budai2, Lívia Budai3

  • 1Department of Chemistry, Sam Houston State University, Huntsville, TX, 77341, USA.

Journal of Basic and Clinical Pharmacy
|May 9, 2014
PubMed

Insights

Ceftazidime eye drops are not commercially available due to rapid degradation. This study optimized liposomal encapsulation of ceftazidime to create a stable formulation for treating eye infections.

Area of Science:

  • Ophthalmology
  • Pharmaceutical Sciences
  • Microbiology

Background:

  • Ceftazidime, a third-generation cephalosporin, is effective against Gram-negative bacteria causing eye infections.
  • It exhibits resistance to common beta-lactamases, offering an advantage over other antibiotics.
  • Rapid degradation in aqueous solutions prevents commercialization of ceftazidime eye drops.

Purpose of the Study:

  • To develop a stable liposomal formulation of ceftazidime for ophthalmic use.
  • To optimize liposomal composition for enhanced stability and efficacy.

Main Methods:

  • Liposomal encapsulation of ceftazidime was investigated.
  • Varied lipid compositions, hydrating solutions, and pH values were tested.
  • Formulation stability and characteristics were analyzed.

Main Results:

  • Liposomal encapsulation demonstrated potential for stabilizing ceftazidime.
  • Optimization of lipid composition, hydration, and pH is crucial for formulation stability.
  • Specific liposomal compositions showed promising results for a potential eye drop formulation.

Conclusions:

  • Liposomal delivery systems offer a viable strategy to overcome ceftazidime's instability in aqueous solutions.
  • Further optimization is needed to finalize a stable and effective ceftazidime liposomal eye drop formulation.
  • This approach could lead to new treatments for bacterial ophthalmological infections.
Keywords:
Ceftazidimeencapsulationliposomeophthalmology

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