Preparation and in vitro characterization of berberine hydrochloride--self-emulsifying microsphere by membrane emulsification technology / 药学学报
Acta Pharmaceutica Sinica
;
(12): 554-559, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-235628
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Particle Size
/
Solubility
/
Berberine
/
Chemistry
/
Technology, Pharmaceutical
/
Drug Delivery Systems
/
Emulsions
/
Methods
/
Microspheres
Type of study:
Prognostic study
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2013
Type:
Article
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