title: Formulation development of intermediate release Nimesulide tablets by CCRD for IVIVC studies.
abstract: Simple and cost effective study consisting of three steps, comparison of micromeritic properties of different blends i.e. placebo without API and Nimesulide containing, Use of central composite design (CCRD) for intermediate release Nimesulide tablets and stability results of three selected Nimesulide tablet formulations which were calculated by using R Gui. Different concentrations of Avicel, hydroxypropyl methyl cellulose (HPMC) and magnesium stearate were used as variables in central composite design and two types blend i.e., with or without Nimesulide were selected for bulk density, tap density, percentage compressibility; angle of repose and Hausner's ratio. Blending rate constant was performed after applying the different mixing times like 3, 6, 9 and 12 minutes. Twenty intermediate release formulations were designed and three formulations were chosen for compression by direct compression method on the basis of compressibility index. Physicochemical properties and best release pattern in four hours in different dissolution medium were successfully measured. Relative densities, porosity of tablets were compared with tensile strength of tablet and weight variation, hardness, friability and dissolution was performed by simple experiments. Presence of Nimesulide in the bulk increased all micromeratic tests while 9 minutes was best mixing time. The hardness of NM containing tablets increased with the increase of relative density. The release pattern was further analyzed by model dependent i.e. zero order, first order and Higuchi, Korse-meyer and Pappas, Hixson Crowell and model independent kinetic model i.e., f2 value respectively. R Gui explained the F16 formulation shows the best result in stability studies with shelf life 72 months.
authors.affiliation: Department of Pharmaceutics, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan / Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Hanif
authors.affiliation: Department of Pharmaceutics, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan.
authors.forename: Muhammad Harris
authors.initials: MH
authors.lastname: Shoaib
authors.affiliation: Department of Pharmaceutics, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan.
authors.forename: Rabia Ismail
authors.initials: RI
authors.lastname: Yousuf
authors.affiliation: Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
authors.forename: Shahnila
authors.initials: S
authors.lastname: Sattar
authors.affiliation: Department of Pharmacy, Hamdard University, Karachi.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Nadeem
authors.affiliation: College of Pharmacy, GC University, Faisalabad, Pakistan.
authors.forename: Liaqat
authors.initials: L
authors.lastname: Hussain
authors.affiliation: College of Pharmacy, GC University, Faisalabad, Pakistan.
authors.forename: Muhammad Usman
authors.initials: MU
authors.lastname: MZia
authors.affiliation: Department of Pharmaceutics, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan.
authors.forename: Iyad Naeem
authors.initials: IN
authors.lastname: Muhammad
authors.affiliation: Department of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Uzair
authors.affiliation: College of Pharmacy, GC University, Faisalabad, Pakistan.
authors.forename: Imran
authors.initials: I
authors.lastname: Qadir
mesh_terms: D002626:Chemistry, Pharmaceutical; D004355:Drug Stability; D012995:Solubility; D013449:Sulfonamides / Q000737:chemistry*; D013607:Tablets
chemical_list: D013449:Sulfonamides; D013607:Tablets; C012655:nimesulide