Spherical crystallization of celecoxib.
Drug Dev Ind Pharm
; 28(10): 1213-20, 2002 Nov.
Article
in En
| MEDLINE
| ID: mdl-12476867
ABSTRACT
Celecoxib exhibits poor flow properties and compressibility. Spherical crystallization of celecoxib was carried out using the solvent change method. An acetonedichloromethane (DCM)water system was used where DCM acted as a bridging liquid and acetone and water as good and bad solvent, respectively. Hydroxypropylmethylcellulose (HPMC) was used to impart strength and sphericity to the agglomerates. The effect of amount of bridging liquid and speed of agitation was studied using 3(2) factorial design. Primary properties of the agglomerates were evaluated by infrared spectroscopy, powder X-ray diffraction, and differential scanning calorimetry. The effect of variables on micromeritic, mechanical, compressional, and dissolution behavior was evaluated by response surface methodology. Particle size, bulk density, mean yield pressure (MYP), and drug release were found to be significantly affected by either of the two variables. Interaction of variables significantly affected the MYP.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Sulfonamides
/
Crystallization
Language:
En
Journal:
Drug Dev Ind Pharm
Year:
2002
Document type:
Article
Affiliation country:
India