CA3110155A1 — Tramadol hbr-celecoxib co-crystal
Assigned to Mylan Laboratories Ltd · Expires 2020-02-27 · 6y expired
What this patent protects
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.
USPTO Abstract
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.
Drugs covered by this patent
- Celebrex (celecoxib) · Pfizer Inc. (originally Searle/Pharmacia)
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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