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Related Experiment Videos

Cyclodextrin derivatives in pharmaceutics

E Albers1, B W Müller

  • 1Department of Pharmaceutics and Biopharmaceutics, Christian Albrecht University, Kiel, Germany.

Critical Reviews in Therapeutic Drug Carrier Systems
|January 1, 1995
PubMed
Summary
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Change of phase-solubility behavior by gamma-cyclodextrin derivatization.

Pharmaceutical research·2013

Chemically modified cyclodextrins (CDs) significantly enhance drug solubility, dissolution, and stability, especially for parenteral applications. Hydroxyalkyl derivatives like 2-hydroxypropyl-beta-cyclodextrin (2-HP-beta-CD) are ideal drug carriers due to their solubility and safety.

Area of Science:

  • Pharmaceutical Chemistry
  • Polymer Science
  • Drug Delivery Systems

Background:

  • Natural cyclodextrins (CDs) are widely used to improve drug properties.
  • Chemically modified CDs offer superior enhancements in drug solubility, dissolution rate, and stability.
  • Parenteral drug delivery benefits significantly from advanced CD derivatives.

Purpose of the Study:

  • To review the synthesis, characterization, and pharmaceutical applications of cyclodextrin derivatives.
  • To highlight the advantages of chemically modified CDs over natural CDs for drug formulation.
  • To identify optimal CD derivatives for parenteral drug delivery.

Main Methods:

  • Literature review of cyclodextrin synthesis and characterization.
  • Analysis of pharmaceutical applications of various CD derivatives.

Related Experiment Videos

  • Evaluation of drug-solubilizing properties of modified CDs.

    • Main Results:

    • Chemically modified CDs demonstrate disproportionately positive effects on drug solubility, dissolution, and stability.
    • Highly water-soluble hydroxyalkyl derivatives of beta- and gamma-CDs, particularly 2-hydroxypropyl-beta-cyclodextrin (2-HP-beta-CD), are of significant interest for parenteral use.
    • 2-HP-beta-CD is favored as a parenteral drug carrier due to low hemolytic activity and amorphous nature, with minimal substitution degree preferred for solubilization.

    Conclusions:

    • Chemically modified cyclodextrins, especially 2-HP-beta-CD, are superior excipients for enhancing drug properties, particularly for parenteral administration.
    • The type, degree, and pattern of substitution on CDs, along with guest molecule properties, influence their efficacy.
    • Optimized CD derivatives hold great promise for advanced drug delivery systems.