| 摘要 |
PROBLEM TO BE SOLVED: To provide an influenza preventive including, as an active ingredient, a pharmacologically acceptable ester derivative of compounds having the sialidase inhibitory activity. SOLUTION: The influenza preventive includes an ester derivative, as an active ingredient, having a sialidase inhibitory activity and can be administered to respiratory organs of the subject. COPYRIGHT: (C)2009,JPO&INPIT
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