发明授权
- 专利标题： Dextromethorphan tannate
- 专利标题（中）： 丹宁酸右美沙芬
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申请号： US10281725申请日： 2002-10-28
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公开(公告)号： US06670370B1公开(公告)日： 2003-12-30
- 发明人: Vilas M. Chopdekar , James R. Schleck , Hemant S. Desai
- 申请人： Vilas M. Chopdekar , James R. Schleck , Hemant S. Desai
- 主分类号： A61K31485
- IPC分类号： A61K31485
摘要：
The invention pertains to a composition comprising dextromethorphan tannate and to a method for preparing dextromethorphan tannate by reacting dextromethorphan at a temperature of about 80 to about 180° C. with tannic acid either neat or as an aqueous slurry containing about 5 to about 30 wt. % water. The dextromethorphan tannate has extended release properties and is useful in pharmaceutical compositions as an antitussive for human beings.