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Dissolution, solubility, XRD, and DSC studies on flurbiprofen-nicotinamide solid dispersions
Authors:Varma M M  Pandi J K
Affiliation:Shri Vishnu College of Pharmacy, Vishnupur, Bhimavaram, India. mohan_pharm@rediffmail.com
Abstract:Flurbiprofen-nicotinamide solid dispersions were prepared by the fusion method. The solid dispersions were evaluated for dissolution rate. The drug-carrier interaction in the liquid and solid states were studied by using phase solubility analysis, phase diagram, X-ray diffraction (XRD), and differential scanning calorimentry (DSC). Solid dispersions gave fast and rapid dissolution of flurbiprofen compared with the pure drug and the physical mixture. Phase diagram and DSC indicated that flurbiprofen and nicotinamide form a eutectic mixture. The aqueous solubility of flurbiprofen was enhanced in the presence of nicotinamide.
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