EP Patent

EP0367746A2 — Sustained release drug-resin complexes

Assigned to Richardson Vicks Inc · Expires 1990-05-09 · 36y expired

What this patent protects

Disclosed are oral pharmaceutical preparations which comprise a pharmacologically active drug bound to small particles of an ion-­exchange resin to provide a drug-resin complex having a drug content above a specified value. The drug-resin complex is subsequently coated with a wat…

USPTO Abstract

Disclosed are oral pharmaceutical preparations which comprise a pharmacologically active drug bound to small particles of an ion-­exchange resin to provide a drug-resin complex having a drug content above a specified value. The drug-resin complex is subsequently coated with a water-permeable diffusion barrier coating that is insoluble in gastrointestinal fluids thereby providing a controllable sustained release of drug under conditions encountered in the gastrointestinal tract.

Drugs covered by this patent

Patent Metadata

Patent number
EP0367746A2
Jurisdiction
EP
Classification
—
Expires
1990-05-09
Drug substance claim
No
Drug product claim
No
Assignee
Richardson Vicks 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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