A novel granulation non-solvent addition method containing hydrophilic and lipophilic drugs

Acta Pol Pharm. 2012 Mar-Apr;69(2):285-90.

Abstract

Atenolol and simvastatin were granulated in combination by non-solvent addition coacervation method to treat hypertension orally. Dissolution test was performed in water containing 0.5% sodium dodecyl sulfate at 37 0.05 degrees C. FTIR spectrometry, X-ray diffractometry and thermal analysis confirmed the absence of any chemical interaction between polymer and the entrapped drugs. The granules size was about 280-619 μm. Scanning electron microscopy reported irregular morphology of granules. The entrapment efficiency was approximately 90% for atenolol and 70% for simvastatin. A controlled release behavior of both drugs but a burst release phenomenon of simvastatin from the formulations were observed. In conclusion, granules loaded with a hydrophilic and a lipophilic drug were successfully prepared.

MeSH terms

  • Antihypertensive Agents / administration & dosage*
  • Atenolol / administration & dosage*
  • Atenolol / chemistry
  • Drug Combinations
  • Simvastatin / administration & dosage*
  • Simvastatin / chemistry
  • Solubility
  • Spectroscopy, Fourier Transform Infrared
  • Technology, Pharmaceutical*
  • X-Ray Diffraction

Substances

  • Antihypertensive Agents
  • Drug Combinations
  • Atenolol
  • Simvastatin