EP2022778A1 — A crystalline form of (R,R)-tramadol-(S)-naproxene salt
Assigned to Esteve Pharmaceuticals SA · Expires 2009-02-11 · 17y expired
What this patent protects
The present invention concerns a (R,R)-tramadol-(S)-naproxene salt, a crystalline form of (R,R)-tramadol-(S)-naproxene salt, as well as their process for preparation and their uses as medicaments, more particularly for the treatment of pain.
USPTO Abstract
The present invention concerns a (R,R)-tramadol-(S)-naproxene salt, a crystalline form of (R,R)-tramadol-(S)-naproxene salt, as well as their process for preparation and their uses as medicaments, more particularly for the treatment of pain.
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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