CA2323805A1 — Analgesic combination comprising nmda receptor antagonists and narcotic analgesics
Assigned to Endo Pharmaceuticals Inc · Expires 1999-09-16 · 27y expired
What this patent protects
The analgesic effectiveness of a narcotic agonist-antagonist analgesic is significantly potentiated by administering a narcotic agonist-antagonist analgesic together with at least one nontoxic NMDA receptor antagonist. The narcotic agonist-antagonist analgesic is selected from th…
USPTO Abstract
The analgesic effectiveness of a narcotic agonist-antagonist analgesic is significantly potentiated by administering a narcotic agonist-antagonist analgesic together with at least one nontoxic NMDA receptor antagonist. The narcotic agonist-antagonist analgesic is selected from the group consisting of pentazocine, nalbuphine, butorphanol, buprenorphine, meptazinol, dezocine, nalorphine, cyclazocine and pharmaceutically acceptable salts thereof. The nontoxic NMDA receptor antagonist is at least one member selected from the group consisting of dextromethorphan, dextrophan, amantadine, memantine and pharmaceutically acceptable salts thereof.
Drugs covered by this patent
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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