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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.
Subject(s)
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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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