Oseltamivir Phosphate is the phosphate salt of oseltamivir, a synthetic derivative prodrug of ethyl ester with antiviral activity. By blocking neuraminidases on the surfaces of influenza viruses, oseltamivir interferes with host cell release of complete viral particles. Oseltamivir is an antiviral drug, a neuraminidase inhibitor used in the treatment and prophylaxis of both influenza A and influenza B. Oseltamivir is a prodrug (usually administered as phosphate), it is hydrolysed hepatically to the active metabolite, the free carboxylate of oseltamivir. Apache/2.2.34 (Amazon) Server at rochecanada.com Port 80 Structure, properties, spectra, suppliers and links for: Oseltamivir phosphate, 204255-11-8. The colorimetric and HPLC methods were evaluated in terms of linearity, assay precision, and accuracy by using pharmaceutical preparations compounded from a mixture of lactose, starch, talc, povidone K30, croscarmellose, and stearyl fumarate, which contained known amounts of oseltamivir phosphate. View All Manufacturers & Suppliers of Oseltamivir phosphate API with Drug Master Files (DMF), CEP/COS, Japanese DMFs, Written Confirmation (WC) details listed on PharmaCompass.com Determination of Oseltamivir Quality maceutical-grade oseltamivir phosphate was graciously donated by Hoffman-La Roche Ltd. We purchased Congo Oseltamivir is an antiviral drug, which may slow the spread of influenza (flu) virus between cells in the body by stopping the virus from chemically cutting ties with its host cell. Estimated API Price per kg in USD for Oseltamivir phosphate obtained from the import, export data from major ports of India Name Oseltamivir phosphate Drug Entry Oseltamivir. An acetamido cyclohexene that is a structural homolog of sialic acid and inhibits neuraminidase.