A critical analytical aspect on analytical protocols in the pharmaceutical analysis of H1N1 antiviral agent and its active metabolite

Abstract

Abstract Background Oseltamivir (OSM) was the first active oral therapeutic inhibitor approved by the Food and Drug Administration in 1999 for the clinical management of the influenza virus. It is an ester-type prodrug of OSM carboxylate in the market under the trade name Tamiflu™ capsules, i.e., oseltamivir phosphate. Because of the ubiquitous application to alleviate influenza virus (flu virus) symptoms, it is imperative to develop systematic analytical protocols for quality control laboratories, bioequivalence, and pharmacokinetic analysis. Main body of the abstract This review provides complete state-of-the-art analytical protocols for quantifying OSM, as published in scientific journals and official compendia. Several studies use LC–MS/MS and HPLC/UV. Additionally, there are reports on UPLC, HPTLC, capillary electrophoresis, FTIR, voltammetry, potentiometry, spectrophotometric, and spectrofluorometry protocols for the drug. Many analytical protocols have also been documented to analyze OSM from environmental water, surface water, sewage discharge, the Neya River and treated sewage effluent and surface water. Conclusion The present review concludes with significant remarks on the methodology used to analyze OSM. Despite the therapeutic applicability of the drug, there are a limited number of comprehensive documents on analytical protocols for determining its concentration in various matrices. This lack of information is elusive, as the applicability and effectiveness of these protocols are crucial for ensuring the quality, efficacy, and safety of OSM.