Dextromethorphan tannate
The invention pertains to dextromethorphan tannate, its method of preparation and to pharmaceutical compositions containing dextromethorphan tannate. The invention pertains to a composition comprising dextromethorphan tannate and to a method for preparing dextromethorphan tannate by reacting dextrom...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The invention pertains to dextromethorphan tannate, its method of preparation and to pharmaceutical compositions containing dextromethorphan tannate.
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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