CA Patent

CA2676881A1 — Peripheral opioid receptor antagonists and uses thereof

Assigned to Wyeth LLC · Expires 2010-03-30 · 16y expired

What this patent protects

The present invention provides a compound of formula I: (see formula I) wherein X-, R1, and R2 are as defined herein, and compositions thereof.

USPTO Abstract

The present invention provides a compound of formula I: (see formula I) wherein X-, R1, and R2 are as defined herein, and compositions thereof.

Drugs covered by this patent

methylnaltrexone-bromide (METHYLNALTREXONE BROMIDE)

Patent Metadata

Patent number: CA2676881A1
Jurisdiction: CA
Classification: —
Expires: 2010-03-30
Drug substance claim: No
Drug product claim: No
Assignee: Wyeth LLC
Source: FDA Orange Book + USPTO grounding via Google Patents

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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