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Volume: 6, Issue: 3, March, 2016
DOI: 10.7324/JAPS.2016.60312

Research Article

Stability Indicating RP-HPLC Method for the Simultaneous Estimation of Pyrimethamine and Sulphadoxine in Bulk and Tablet Dosage Form

Veeragoni Anil Kumar, Vasudeva Murthy Sindgi, Shoba Rani Satla, Manish Kumar Thimmaraju

  Author Affiliations


A stability indicating simple, selective, accurate high Performance Liquid Chromatographic (HPLC) method was developed and validated for the combined tablet formulation of pyrimethamine & sulphadoxine. Chromatographic separation was optimized by gradient HPLC on a C18 column [Inertsil Silica, 250 x 4.6 mm, 5ยต] utilizing a mobile phase of potassium dihydrogen phosphate and acetonitrile taken in the ratio 70:30 at a flow rate of 1.0 ml/min with UV detection at 221nm. The retention time of pyrimethamine and sulphadoxine was 2.77 and 6.57 min respectively. The developed method was validated in terms of accuracy, precision, linearity, limit of detection, limit of quantitation, robustness and stress degradation studies. Validation of the method was done in accordance with ICH guidelines for the assay of active ingredients. Thus validated method can be recommended for the routine laboratory analysis.

Keywords: Pyrimethamine, sulphadoxine, ICH guidelines and stress degradation studies.


Copyright: The Author(s). This is an open access article distributed under the Creative Commons Attribution Non-Commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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