EP2191833A1 — Transdermally absorbable preparation
Assigned to Shiseido Co Ltd · Expires 2010-06-02 · 16y expired
What this patent protects
[PROBLEMS] To improve the stability of a natural type sex hormone and the permeation in a transdermally absorbable preparation containing the natural type sex hormone to thereby increase the systemic effect and the long-acting property of the preparation. [MEANS FOR SOLVING…
USPTO Abstract
[PROBLEMS] To improve the stability of a natural type sex hormone and the permeation in a transdermally absorbable preparation containing the natural type sex hormone to thereby increase the systemic effect and the long-acting property of the preparation. [MEANS FOR SOLVING PROBLEMS] The preparation comprises a natural type sex hormone, a polyoxyethylene oleyl ether having a molar number of ethylene oxide units added of 20, at least two kinds of oily ingredients selected from the group consisting of diisopropyl adipate, cetyl alcohol, benzyl alcohol, and propylene glycol dicaprate, a polyhydric alcohol, and ethanol.
Drugs covered by this patent
- Estrace (ESTRADIOL) · Pfizer
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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