Fast and controlled release of triamcinolone acetonide from extrusion-spheronization pellets based on mixtures of native starch with dextrin or waxy maize starch

Drug Dev Ind Pharm. 2007 Sep;33(9):945-51. doi: 10.1080/03639040601128720.

Abstract

Pellets composed chiefly of inexpensive starches allow modulation of the rate of release of the poorly soluble drug triamcinolone acetonide in media of pH 1.2-6.8. Wheat- or maize-starch-based pellets with 20% of white dextrin release the drug in vitro almost completely within 20 min, while maize-starch-based pellets with 5-35% of waxy maize starch sustain gradual release over periods of 9-12 hr or longer when prepared using appropriate amounts of granulation fluid.

MeSH terms

  • Chemistry, Pharmaceutical
  • Delayed-Action Preparations
  • Dextrins / chemistry*
  • Dosage Forms
  • Excipients / chemistry*
  • Hydrogen-Ion Concentration
  • Microscopy, Electron, Scanning
  • Solubility
  • Starch / chemistry*
  • Triamcinolone Acetonide / chemistry*
  • Triticum / chemistry
  • Waxes / chemistry
  • Zea mays / chemistry

Substances

  • Delayed-Action Preparations
  • Dextrins
  • Dosage Forms
  • Excipients
  • Waxes
  • Starch
  • Triamcinolone Acetonide