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Solubilization of diazepam

F A Alvarez Núñez1, S H Yalkowsky

  • 1College of Pharmacy, University of Arizona, Tucson, USA.

PDA Journal of Pharmaceutical Science and Technology
|May 15, 1998
PubMed
Summary
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Cosolvency offers a superior method for increasing diazepam solubility compared to pH control, surfactants, or cyclodextrins. This study evaluates various diazepam solubilization techniques, highlighting cosolvency

Area of Science:

  • Pharmaceutical Sciences
  • Drug Delivery Systems

Background:

  • Diazepam, a widely used anxiolytic, exhibits poor aqueous solubility, limiting its therapeutic applications.
  • Existing literature details several methods to enhance diazepam solubility.

Purpose of the Study:

  • To critically evaluate and compare different diazepam solubilization approaches.
  • To identify the most effective and practical method for increasing diazepam solubility.

Main Methods:

  • Review and analysis of literature concerning pH control, cosolvency, surfactants, and cyclodextrins for diazepam solubilization.
  • Comparative assessment of the advantages, assumptions, and limitations of each technique.

Main Results:

  • Cosolvency emerged as a more advantageous approach for solubilizing diazepam.

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  • pH control, surfactants, and cyclodextrins presented specific limitations and challenges.

    • Conclusions:

    • Cosolvency represents a highly attractive and effective strategy for enhancing diazepam solubility.
    • Understanding the nuances of each solubilization technique is crucial for optimal drug formulation.