DEVELOPMENT AND VALIDATION OF A METHOD FOR QUANTITATIVE DETERMINATION OF OSELTAMIVIR IN CAPSULES AND POWDER FOR ORAL SUSPENSION
Keywords:
Oseltamivir, Capsules, Powder for oral suspension, Quantitative determination, ValidationAbstract
INTRODUCTION: Tthe World Health Organization (WHO) declared the pandemic influenza A H1N1 virus infection in 2009. Argentine health authorities promoted the development and validation of a quality control method for pharmaceutical products containing oseltamivir as active ingredient. OBJECTIVE: To develop and validate a method for oseltamivir quantitative determination in the pharmaceutical dosage forms of capsules and powder for oral suspension. METHODS: The determination of oseltamivir was performed using a high performance liquid chromatography (HPLC) method under an isocratic elution, at a temperature of 50°C with a RP-8 Phenomenex Luna column and a mobile phase containing acetate buffer pH 5.39 and methanol. The detection was performed at 230nm with a diode array detector. The method was validated by evaluating specificity, filter retention, solution stability, linearity, accuracy, precision and robustness. RESULTS: An HPLC method was developed and validated for quantitative determination of oseltamivir, and it was successfully applied in the analysis of eleven medical products from national and international laboratories. CONCLUSIONS: The method developed can be applied for control of all products on the Argentine market in its two pharmaceutical forms.
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