Preparation and in vitro characterization of berberine hydrochloride--self-emulsifying microsphere by membrane emulsification technology.
- Author:
Hong-Qiao LI
1
;
Tao YI
Author Information
1. School of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
- Publication Type:Journal Article
- MeSH:
Berberine;
administration & dosage;
chemistry;
Drug Delivery Systems;
methods;
Emulsions;
Microspheres;
Particle Size;
Solubility;
Technology, Pharmaceutical;
methods
- From:
Acta Pharmaceutica Sinica
2013;48(4):554-559
- CountryChina
- Language:Chinese
-
Abstract:
This paper reports a new solid self-emulsifying drug delivery system--self-emulsifying microsphere prepared by membrane emulsification technology with the hydrophobic berberine hydrochloride as a model drug. Solubility test and pseudo-ternary phase diagram were employed to select the optimal prescription of liquid self-emulsifying drug delivery system. The self-emulsifying microsphere was prepared by membrane emulsification technology with the solid carrier in a gel formed by sodium alginate and calcium chloride. The results showed that the optimal prescription of liquid self-emulsifying drug delivery system was Capmul MCM/Cremophor RH40/Labrasol/1-2propanediol = 20 : 32 : 32 : 16. The solid self-emulsifying microsphere had average diameter of 10.92 microm, encapsulation efficiency of 32.57% and the droplet size of reconstituted micromulsion of 156.5 nm. Berberine hydrochloride was dispersed in microsphere in non-crystalline form. In vitro release of the self-emulsifying microsphere showed pH response characteristics. These results indicated that the self-emulsifying microsphere prepared by membrane emulsification technology might become a new dosage form for poorly water soluble drugs.
