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Original scientific paper

Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions

BHANUBHAI N. SUHAGIA
HARESH M. PATEL
SHAILESH A. SHAH
ISHWARSINH RATHOD
VIJAY K. PARMAR

Fulltext: english, pdf (292 KB) pages 285-298 downloads: 1.622* cite
APA 6th Edition
SUHAGIA, B.N., PATEL, H.M., SHAH, S.A., RATHOD, I. & PARMAR, V.K. (2006). Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions. Acta Pharmaceutica, 56 (3), 285-298. Retrieved from https://hrcak.srce.hr/4538
MLA 8th Edition
SUHAGIA, BHANUBHAI N., et al. "Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions." Acta Pharmaceutica, vol. 56, no. 3, 2006, pp. 285-298. https://hrcak.srce.hr/4538. Accessed 18 Oct. 2019.
Chicago 17th Edition
SUHAGIA, BHANUBHAI N., HARESH M. PATEL, SHAILESH A. SHAH, ISHWARSINH RATHOD and VIJAY K. PARMAR. "Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions." Acta Pharmaceutica 56, no. 3 (2006): 285-298. https://hrcak.srce.hr/4538
Harvard
SUHAGIA, B.N., et al. (2006). 'Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions', Acta Pharmaceutica, 56(3), pp. 285-298. Available at: https://hrcak.srce.hr/4538 (Accessed 18 October 2019)
Vancouver
SUHAGIA BN, PATEL HM, SHAH SA, RATHOD I, PARMAR VK. Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions. Acta Pharm. [Internet]. 2006 [cited 2019 October 18];56(3):285-298. Available from: https://hrcak.srce.hr/4538
IEEE
B.N. SUHAGIA, H.M. PATEL, S.A. SHAH, I. RATHOD and V.K. PARMAR, "Preparation and characterization of etoricoxib – polyethylene glycol 4000 plus polyvinylpyrrolidone K30 solid dispersions", Acta Pharmaceutica, vol.56, no. 3, pp. 285-298, 2006. [Online]. Available: https://hrcak.srce.hr/4538. [Accessed: 18 October 2019]

Abstracts
The objective of the present investigation was to study the influence of polyethylene glycol 4000 (PEG) and polyvinylpyrrolidone K30 (PVP) on in vitro dissolution of etoricoxib from solid dispersions. The preliminary studies were carried out using physical mixture of drug and carriers. The solid dispersions were prepared using the solvent evaporation method.

A 32 factorial design was adopted in the solvent evaporation method using the concentration of PEG and PVP as independent variables. Full and reduced models were evolved for dependant variables, such as the percentage of drug release in 10 min (Q10), percentage of drug release in 30 min (Q30), percentage of drug release in 45 min (Q45) and percent dissolution efficiency (DE). The reduced models were validated using two check points. Q10 > 65%, Q30 > 75%, Q45 > 85% and DE > 80% were used as constraints for the selection of an optimized batch. Contour plots are presented for the selected dependant variables.

PEG was found to be more effective in increasing the drug dissolution compared to PVP.
Wettability study was carried out for pure drug and optimized batch. FT-IR spectroscopy, microscopic study, differential scanning calorimetry and X-ray diffraction study were carried out in order to characterize drug in the solid dispersions. Improved dissolution was attributed to decreased crystallinity of the drug, improved wetting and solubilizing effects of carriers such as PEG and PVP from the solid dispersion of etoricoxib. In conclusion, dissolution of etoricoxib can be modulated using appropriate levels of hydrophilic carriers.

Keywords
etoricoxib; solid dispersions; dissolution; polyethylene glycol; polyvinylpyrrolidone; factorial design

Hrčak ID: 4538

URI
https://hrcak.srce.hr/4538

[croatian]

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