Format

Send to

Choose Destination
See comment in PubMed Commons below
AAPS PharmSciTech. 2010 Jun;11(2):672-8. doi: 10.1208/s12249-010-9432-x. Epub 2010 Apr 20.

Development of silymarin self-microemulsifying drug delivery system with enhanced oral bioavailability.

Author information

1
Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China.

Abstract

The objective of this work was to develop a self-microemulsifying drug delivery system (SMEDDS) for improving oral absorption of poorly water-soluble drug, silymarin. The pseudo-ternary phase diagrams were constructed using ethyl linoleate, Cremophor EL, ethyl alcohol, and normal saline to identify the efficient self-microemulsification region. The particle size and its distribution of the resultant microemulsions were determined using dynamic light scattering. The optimal formulation with the best self-microemulsifying and solubilization ability consisted of 10% (w/w) of ethyl linoleate, 30% of Cremophor EL, and 60% of ethyl alcohol. The release of silymarin from SMEDDS was significantly faster than that from the commercial silymarin preparation hard capsule (Legalon). The bioavailability results indicated that the oral absorption of silymarin SMEDDS was enhanced about 2.2-fold compared with the hard capsule in fasted dogs. It could be concluded that SMEDDS would be a promising drug delivery system for poorly water-soluble drugs by the oral route.

PMID:
20405254
PMCID:
PMC2902333
DOI:
10.1208/s12249-010-9432-x
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Springer Icon for PubMed Central
    Loading ...
    Support Center