Tramadol HBR-Celecoxib Co-Crystal
The present invention provides a novel 1:1 co-crystal of (rac)-tramadol hydrobromide-celecoxib and processes for the preparation of the same by reacting (rac)-tramadol with hydrobromic acid and celecoxib. It also provides crystalline form of (rac)-tramadol hydrobromide.
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The present invention provides a novel 1:1 co-crystal of (rac)-tramadol hydrobromide-celecoxib and processes for the preparation of the same by reacting (rac)-tramadol with hydrobromic acid and celecoxib. It also provides crystalline form of (rac)-tramadol hydrobromide. |
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