Previously, the drug was only approved for use in children one year of age and older. In an application from the manufacturer of oseltamivir phosphate to the FDA, a proposal was made to approve its use The document stated that previous testing in rats showing toxic levels of the drug in the neonatal brain tissue was proven to be erroneous, and subsequent animal studies done by the National Institutes of Health (NIH) showed no such effects (FDA/CDER, 2012). Further, a retrospective study was conducted by the National Institute of Allergy and Infectious Diseases (NIAID) and NIH to review charts of infants who were