Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.scitotenv.2008.06.032
Title (Primary) The environmental fate of the antiviral drug oseltamivir carboxylate in different waters
Author Bartels, P.; von Tümpling, W. ORCID logo
Source Titel Science of the Total Environment
Year 2008
Department FLOEK
Volume 405
Issue 1-3
Page From 215
Page To 225
Language englisch
Keywords Tamiflu; Pharmaceuticals; Avian influenza; H5N1; Photolysis; Microbial degradation
Abstract Since the efficacy of oseltamivir carboxylate (OC) as the active metabolite of Tamiflu® has been demonstrated against influenza viruses and even against the avian influenza virus (H5N1), millions of Tamiflu® treatment courses are stockpiled worldwide. This was done not at least to follow the recommendations of the World Health Organization (WHO) to cope with a viral influenza pandemic. Concentrations up to 26-32 µg l- 1 OC in river catchment areas in the United States and in the United Kingdom had been predicted recently for a pandemic case, assuming an apparent persistence of the Tamiflu® metabolite. Such concentrations may involve the risk of generation of antiviral resistance. But there is still a lack of data concerning the stability of OC in a surface water environment. Under this aspect these predictions have to be validated with concrete facts about the environmental fate of OC.In this article we summarized the results of three different daylight exposure experiments with OC in different waters under sterile and non-sterile conditions simulating shallow water processes at the latitude of approximately 52°N. Using a river water solution containing 50 µg l- 1 OC under non-sterile conditions a half-life time of 17.8 days was observed. Direct photolysis plays no or only a negligible role for the decomposition of OC. Degradation of OC seems to occur as a combination of microbial metabolism and indirect photolysis.
Persistent UFZ Identifier
Bartels, P., von Tümpling, W. (2008):
The environmental fate of the antiviral drug oseltamivir carboxylate in different waters
Sci. Total Environ. 405 (1-3), 215 - 225 10.1016/j.scitotenv.2008.06.032