![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj38uMIbqOvNwkAEn80ZFNPzRz8j4DFcCwu55fLnVujTtmq8ulUHd7X3NrSRfPmWvsXd70IkbuGPuloB4QZf-iskcTZM5uSFnKB6fRLWxBIpFgzJ0KZuZOHzphwxux10bUzKLTr9-sBBay7/s280/%E3%82%B7%E3%83%B3%E3%83%A1%E3%83%88%E3%83%AC%E3%83%AB%E9%8C%A0.jpg)
Amantadine tablets(50mg)
in USA. Accidentally, the patients with Parkinson disease who took this drug improved
the tremor symptom. thereafter also approved. In Japan, this drug was first approved for
the treatment for Parkinson disease and then for influenza A virus infection.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhgKMJRvKCAGCEsP9eGIVqP61hGdNCCeoxm92r5r_ospkF7yk1mHM3JWgDOjq6lg5kfap0VW6CSNMZL2VWM15AZhrMQV0hmrwmZ6whA82-I00qRwHOT4UgikkCDtK0wuF3d8-FrWOrqDMuT/s280/%E3%82%B7%E3%83%B3%E3%83%A1%E3%83%88%E3%83%AC%E3%83%AB%E7%B4%B0%E7%B2%92.jpg)
Amantadine granules(10%).
Trade name: Symmetrel fine granules
8-year-old boy of influenza A virus infection, treated with Symmetrel.
Dosage of Amantasine
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1~9 year ---------- 5mg/kg/day(max.150mg). in 1 or 2 divided doses.
10 year older (body weight 40kg> ) ------- 200mg/day. 1 or 2 div.
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![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEitQiwa1hZQVNXC3DQTfg6dbfxVDXNcZFIB0z_Le7mpLU43DbN13I6smK14oh9NFo3zC7znUcLdEaU6jLabD_e1_KFtx-GcqEAmHv9O8VvMuzgg29PxsFhLNmgOYHvWUCzaeRWzoyjZlQKj/s280/%E3%82%B7%E3%83%B3%E3%83%A1%E3%83%88%E3%83%AC%E3%83%AB%EF%BC%98%E6%89%8D.jpg)
Any questions: write to Keiji Hagiwara MD.
keijihagiwara@gmail.com