title: Development of extended-release solid dispersions of nonsteroidal antiinflammatory drugs with aqueous polymeric dispersions: optimization of drug release via a curve-fitting technique.
abstract: Extended-release solid dispersions of nonsteroidal antiinflammatory drugs were prepared by using aqueous polymeric dispersions of Eudragit RS30D and Eudragit RL30D as the inert carriers. The effects of different polymer ratios of Eudragit RS30D and Eudragit RL30D, different particle sizes, and different combination of various formulations of solid dispersions on the in vitro release kinetics of drugs from the dosage forms were investigated. A computer curve-fitting process was developed to choose the optimum formulation of the solid dispersion with the desired drug release profile. This process might offer the advantages of efficiency and simplicity in the formulation development of extended-release solid dispersions.
authors.affiliation: Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, Northeastern University, Boston, Massachusetts 02115.
authors.forename: C
authors.initials: C
authors.lastname: Ho
authors.forename: G C
authors.initials: GC
authors.lastname: Hwang
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage* / Q000493:pharmacokinetics; D002626:Chemistry, Pharmaceutical; D002851:Chromatography, High Pressure Liquid; D003692:Delayed-Action Preparations; D004337:Drug Carriers; D005480:Flurbiprofen / Q000008:administration & dosage / Q000493:pharmacokinetics; D007660:Ketoprofen / Q000008:administration & dosage / Q000493:pharmacokinetics; D007700:Kinetics; D010316:Particle Size; D011108:Polymers / Q000737:chemistry; D013535:Suspensions
chemical_list: D000180:Acrylic Resins; D000894:Anti-Inflammatory Agents, Non-Steroidal; D003692:Delayed-Action Preparations; D004337:Drug Carriers; D011108:Polymers; D013535:Suspensions; C050528:Eudragit RS; C058665:Eudragit RL; D005480:Flurbiprofen; D007660:Ketoprofen