RP-HPLC METHOD DEVELOPMENT, VALIDATION, AND QUANTIFICATION OF LORNOXICAM IN LIPID NANOPARTICLE FORMULATIONS
DOI:
https://doi.org/10.22159/ijpps.2016v8i11.14256Keywords:
Lornoxicam, SLN, NLC, RP-HPLC, PharmacokineticAbstract
Objective: A simple, reliable, sensitive and validated reversed phase-high performance liquid chromatography (RP-HPLC) method was developed for quantification of lornoxicam (LX) in rat plasma.
Methods: Solid lipid nanoparticle (SLN) and nanostructured lipid carriers (NLC) gel formulations containing lornoxicam were prepared using high-speed homogenization followed by ultra-sonication. Pharmacokinetic study of formulated LX loaded SLN and NLC were performed on Wister albino rats.
Results: The chromatographic separation was performed on hypersil octadecylsilane (ODS)-18 column using a mobile phase of 10 mmol. Phosphate buffer (pH, 4.5) and acetonitrile (65:35 v/v). Elute was monitored at 377 nm with a flow rate of 1 ml/min. Calibration curve was linear over the concentration range of 25.38–2046.45 ng/ml. Retention times of LX and internal standard (piroxicam) were 9.3 and 10.2 min, respectively. Maximum plasma drug concentration, the area under the plasma drug concentration versus time curve and elimination half-life for LX loaded SLN gel were found 6381.51±971.27ng/ml, 19917.21±7111.24 ng h/ml and 7.27±1.21h and 8558.13±1564.08 ng/ml, 21317.99±4568.71 ng/ml and 6.22±2.16 h. respectively. In vivo in vitro correlation study, the fraction of drug dissolved from nanoparticle in pH 7.4 was plotted against the fraction of drug absorbed and a linear correlation (R2= 0.9987) was obtained.
Conclusion: A novel simple, simple, sensitive, precise, rapid, accurate, and economical and reliable RP-HPLC method was developed and validated for the estimation of LX in rat plasma.
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