US Patent

US8062667 — Modified release formulations containing drug-ion exchange resin complexes

Formulation · Assigned to Tris Pharma Inc · Expires 2029-03-29 · 3y remaining

Vulnerability score 60/100 Moderate — design-around opportunities exist

What this patent protects

This patent protects modified release formulations containing a coated drug-ion exchange resin complex with a polyvinyl acetate polymer and plasticizer coating.

USPTO Abstract

A coated drug-ion exchange resin complex comprising a core composed of a drug complexed with a pharmaceutically acceptable ion-exchange resin is provided. The drug-ion exchange resin complex is in admixture with a release retardant. The coating is a polyvinyl acetate polymer and a plasticizer. Methods of making and products containing this coated complex are described.

Drugs covered by this patent

Patent Metadata

Patent number: US8062667
Jurisdiction: US
Classification: Formulation
Expires: 2029-03-29
Drug substance claim: No
Drug product claim: Yes
Assignee: Tris Pharma Inc
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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