EP Patent

EP0286581A1 — Buccal administration of estrogens

Assigned to Zetachron Inc · Expires 1988-10-12 · 38y expired

What this patent protects

An adequate blood plasma level of 17-beta-estradiol or ethinyl estradiol is attained in a patient in need of estrogen therapy by administration of a dose of 17-beta-estradiol or ethinyl estradiol or a pharmaceutically acceptable ester thereof not greater than 150 micrograms into …

USPTO Abstract

An adequate blood plasma level of 17-beta-estradiol or ethinyl estradiol is attained in a patient in need of estrogen therapy by administration of a dose of 17-beta-estradiol or ethinyl estradiol or a pharmaceutically acceptable ester thereof not greater than 150 micrograms into the vestibule of the buccal cavity of the patient and maintaining the dose in contact with the oral mucosa for a period of time sufficient for transmucosal absorption of a sufficient amount of estrogen to produce a therapeutically effective plasma concentration of estrogen.

Drugs covered by this patent

Patent Metadata

Patent number
EP0286581A1
Jurisdiction
EP
Classification
—
Expires
1988-10-12
Drug substance claim
No
Drug product claim
No
Assignee
Zetachron 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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.