Dextromethorphan tannate

Details Dextromethorphan tannate Dextromethorphan tannate

A - Human Necessities

61

K

A61K 31/485 (2006.01) A61P 11/14 (2006.01)

Patent

CA 2412464

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.

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