title: Preparation and characterization of ibuprofen-cetyl alcohol beads by melt solidification technique: effect of variables.
abstract: Ibuprofen (IBU) exhibits short half-life, poor compressibility, flowability and caking tendency. IBU melt has sufficiently low viscosity and exhibits interfacial tension sufficient to form droplet even at low temperature. A single step novel melt solidification technique (MST) was developed to produce IBU beads with lower amounts of excipient. Effect of variables was studied using a 3(2) factorial approach with speed of agitation and amount of cetyl alcohol (CA) as variables. The beads were evaluated using DSC, FT-IR and scanning electron microscope (SEM). Yield, micromeritic properties, crushing strength and release kinetics were also studied. Spherical beads with a method yield of above 90% were obtained. The data was analyzed by response surface methodology. The variables showed curvilinear relationship with yield in desired particle size range, crushing strength and, bulk and tap density. The drug release followed non-Fickian case II transport and the release rate decreased linearly with respect to amount of CA in the initial stages followed by curvilinearity at later stages of elution. The effect of changing porosity and tortuosity was well correlated.
authors.affiliation: Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth Deemed University, Erandawane, -411038, Maharashtra State, Pune, India.
authors.forename: Manish
authors.initials: M
authors.lastname: Maheshwari
authors.forename: Anant R
authors.initials: AR
authors.lastname: Ketkar
authors.forename: Bhaskar
authors.initials: B
authors.lastname: Chauhan
authors.forename: Vinay B
authors.initials: VB
authors.lastname: Patil
authors.forename: Anant R
authors.initials: AR
authors.lastname: Paradkar
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D002626:Chemistry, Pharmaceutical; D003692:Delayed-Action Preparations; D005233:Fatty Alcohols / Q000737:chemistry*; D006358:Hot Temperature; D007052:Ibuprofen / Q000737:chemistry*; D007700:Kinetics; D008855:Microscopy, Electron, Scanning; D008863:Microspheres; D010316:Particle Size; D012995:Solubility; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D003692:Delayed-Action Preparations; D005233:Fatty Alcohols; C005031:cetyl alcohol; D007052:Ibuprofen