Abstract
Flurbiprofen was formulated into nanoparticle suspension to improve its oral bioavailability. Hydroxypropyl-β-cyclodextrin inclusion–flurbiprofen complex (HP-β-CD–FP) was prepared, then incorporating this complex into poly(alkyl-cyanoacrylate) (PACA) nanoparticles. HP-β-CD–FP–PACA nanoparticle was prepared by the emulsion solvent polymerization method. The zeta potential was −26.8 mV, the mean volume particle diameter was 134 nm, drug encapsulation efficiency was 53.3 ± 3.6 % and concentration was 1.5 mg/mL. The bioavailability of flurbiprofen from optimized nanoparticles was assessed in male Wistar rats at a dose of 15 mg/kg. As compared to the flurbiprofen suspension, 211.6 % relative bioavailability was observed for flurbiprofen nanoparticles. The reduced particle size and increased surface area may contribute to improve oral bioavailability of flurbiprofen.
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The authors are very grateful to Mr. Haibo Zhou for assistance in the experimental work.
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Zhao, X., Li, W., Luo, Q. et al. Enhanced bioavailability of orally administered flurbiprofen by combined use of hydroxypropyl-cyclodextrin and poly(alkyl-cyanoacrylate) nanoparticles. Eur J Drug Metab Pharmacokinet 39, 61–67 (2014). https://doi.org/10.1007/s13318-013-0138-9
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DOI: https://doi.org/10.1007/s13318-013-0138-9