Pallavi A. Patil, A.R. Umarkar, M.M. Bari and S.D. Barhate
Objective: A Stability indicating Reverse-Phase liquid chromatographic method for the simultaneous estimation of Drotaverine HCl and Mefenamic acid was developed.
Method: The chromatographic assay involves the use of Hi Q C-18 W (5μm column with a simple mobile phase containing 80:20% v/v of methanol & HPLC Grade water (0.1% triethylamine at pH 3) with flow rate of 1.0mL/min with UV detection at wavelength of 250 nm.
Result: The method showed good linearity in the concentration range of 2-10 μg/mL for Drotaverine Hcl and 6-30 μg/mL for Mefenamic Acid.
Conclusion: The developed method was successfully validated as per the ICH guidelines. The stability indicating capacity was also tested and successfully applied to marketed formulation.
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