Simultaneous Estimation of Racecadotril and Ofloxacin by Reverse Phase High Performance Liquid Chromatography Method in Pharmaceutical Dosage Forms.
Abstract
Background: Racecadotril and Ofloxacin (RACIGYL- O) drug combination are used for the treatment of diarrhea. The drugs have been estimated individually in formulations but no method has been developed for simultaneous estimation of these two drugs as combination.
Objective: To develop and validate a high performance liquid chromatography method for the simultaneous estimation of Racecadotril and Ofloxacin in tablet dosage form.
Method: A WATERS C18 column (250 x 4.6mm, 5 μm) with mobile phase consisting of acetonitrile, methanol and water 40:40:20v/v (pH adjusted to 2.7 of water with ortho phosphoric acid). The flow rate was 1.0mL/min and effluents were monitored at 210nm.
Results: The retention time of RAC and OFL was 4.666 min and 2.551 min respectively. The developed method was validated according to ICH guidelines with respect to specificity, linearity, accuracy, precision, robustness, Limit of Detection (LOD) and Limit of Quantification (LOQ).
Conclusion: The method show good reproducibility and recovery with %RSD less than 2. So the proposed method was found to be simple, rapid, precise and accurate and useful for the determination of RAC and OFL in bulk and pharmaceutical dosage forms.
Keywords: RP-HPLC, Racecadotril, Ofloxacin, ICH guidelines.
DOI
https://doi.org/10.22270/jddt.v9i4-s.3266References
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