EP Patent

EP0421333A1 — Tretinoin emulsified cream formulations of improved stability

Assigned to Bristol Myers Squibb Co · Expires 1991-04-10 · 35y expired

What this patent protects

An emulsified aqueous tretinoin cream formulation comprising a therapeutically active amount of tretinoin and from 0.01 to 5.0 percent by weight of an acrylic acid polymer as a stabilizer to prevent breaking of the emulsion in a pharmaceutically acceptable aqueous carrier is disc…

USPTO Abstract

An emulsified aqueous tretinoin cream formulation comprising a therapeutically active amount of tretinoin and from 0.01 to 5.0 percent by weight of an acrylic acid polymer as a stabilizer to prevent breaking of the emulsion in a pharmaceutically acceptable aqueous carrier is disclosed.

Drugs covered by this patent

Patent Metadata

Patent number
EP0421333A1
Jurisdiction
EP
Classification
—
Expires
1991-04-10
Drug substance claim
No
Drug product claim
No
Assignee
Bristol Myers Squibb Co
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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