EP Patent

EP0553392A1 — Stabilized controlled release formulations having acrylic polymer coating

Assigned to Euro Celtique SA · Expires 1993-08-04 · 33y expired

What this patent protects

A stabilized solid controlled release dosage form having a coating derived from an aqueous dispersion of an acrylic polymer is obtained by overcoating a substrate including a therapeutically active with an aqueous dispersion of the plasticized acrylic polymer and then curing the …

USPTO Abstract

A stabilized solid controlled release dosage form having a coating derived from an aqueous dispersion of an acrylic polymer is obtained by overcoating a substrate including a therapeutically active with an aqueous dispersion of the plasticized acrylic polymer and then curing the coated substrate at a temperature above the glass transition temperature of the plasticized acrylic polymer, until the coated dosage form attains a stabilized dissolution profile substantially unaffected by exposure to storage conditions of elevated temperature and/or elevated relative humidity.

Drugs covered by this patent

Patent Metadata

Patent number
EP0553392A1
Jurisdiction
EP
Classification
—
Expires
1993-08-04
Drug substance claim
No
Drug product claim
No
Assignee
Euro Celtique SA
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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