alexa Evaluation of drug-excipient interaction in the formulation of celecoxib tablets.
Chemical Engineering

Chemical Engineering

Journal of Chromatography & Separation Techniques

Author(s): BozdaPehlivan S, Subai B, Vural I, Unl N, Capan Y

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Abstract In the present study, the possible interactions between celecoxib and some excipients (colloidal silicon dioxide (Aerosil), microcrystalline cellulose (Avicel PH 102), lactose anhydrous, magnesium stearate, cross-povidone and talc) were evaluated by examining the pure drug or drug-excipient powder mixtures which were stored under different conditions (25 +/- 2 degrees C, 60\% RH +/- 5\% RH or 40 + 2 degrees C, 75\% RH +/- 5\% RH) and different period (30 or 60 days) using DSC, FT-IR and HPLC. In order to investigate the possibility of celecoxib-excipient interaction in aqueous medium, dispersions of the pure drug or drug in physical powder mixture (1:1 w/w) in water (1\%, w/v) were also prepared and evaluated by FT-IR and HPLC at day 0 and day 7 (40 +/- 2 degrees C). The interaction between celecoxib and magnesium stearate or colloidal silicon dioxide were determined in the aqueous dispersions by FT-IR. Different tablet formulations with or without excipients tested were prepared, and assessed for drug dissolution and permeability.
This article was published in Acta Pol Pharm and referenced in Journal of Chromatography & Separation Techniques

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