STABILITY-INDICATING METHOD DEVELOPMENT AND VALIDATION OF ITRACONAZOLE AND TERBINAFINE HCL IN BULK AND PHARMACEUTICAL TABLET DOSAGE FORM
Objective: The objective of the present work was to develop and validate the stability-indicating method for the simultaneous estimation of itraconazole and terbinafine HCl in bulk and pharmaceutical tablet dosage form by reversed-phase high-performance liquid chromatography (HPLC). This combination of drugs is not reported for simultaneous HPLC analysis as of now.
Methods: The analysis of the developed method was carried on Shimadzu LC Prominence-i 2030 model with Lab Solution software and the separation was done on Shim-pack C18 GIST (250 mm×50 mm, 5 μm) column with a flow rate of 1.2 ml/min and run time of 12 min. The injection volume was 10 μl and mobile phase consisted of acetonitrile and 0.1% triethylamine in the ratio of 90:10 and 225 nm was used as a detection wavelength.
Results: The retention time was found to be 3.464 min and 8.705 min for itraconazole and terbinafine HCl, respectively. The calibration curve was found to be linear and r2 values were 0.9989 and 0.9995 for itraconazole and terbinafine HCl, respectively.
Conclusion: The stability-indicating method was developed by subjecting itraconazole and terbinafine HCl marketed formulation to various stress conditions such as acidic, basic, oxidative, thermal, and water hydrolysis degradation conditions and the degraded product peaks were well resolved from sample peaks.
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