Enhanced intestinal permeability of quercetin coated felodipine beads in wistar rats. Formulation and Ex Vivo study

Amita Bhandari, Zenab Attari, Prashant Musmade, Shaila Lewis

Research output: Contribution to journalArticle


Felodipine exhibits limited oral bioavailability, one reason being cytochrome P 450 substrate. Quercetin is reported in literature as an inhibitor of P-glycoprotein and cytochrome P 450, thereby, improving bioavailability of P-glycoprotein and cytochrome P 450 substrates. A mixture of quercetin and felodipine showed increased permeability of felodipine in a pilot experiment of the present study. Based on these results, an attempt has been made to formulate a dosage form comprising of sugar beads loaded with felodipine along with quercetin coating. The cytochrome P450 3A4 inhibitory effect of quercetin on the permeation of felodipine from the formulation was investigated using Ussing chamber. The beads exhibited 100% felodipine release in dissolution study. The results from ex vivo permeability study suggested that the formulation improved the intestinal permeation of felodipine in presence of quercetin.

Original languageEnglish
Pages (from-to)558-563
Number of pages6
JournalLatin American Journal of Pharmacy
Issue number3
Publication statusPublished - 2016


All Science Journal Classification (ASJC) codes

  • Pharmaceutical Science
  • Drug Discovery

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