EP0271983B1 — Transdermal flux enhancing compositions
Assigned to Pfizer Inc · Expires 1991-06-12 · 35y expired
What this patent protects
A transdermal flux enhancing pharmaceutical composition for transdermal administration to a human or lower animal subject comprising a safe and effective amount of a pharmacologically active compound or a prodrug thereof, an aqueous ethanol solvent containing from 15 to 75% ethan…
USPTO Abstract
A transdermal flux enhancing pharmaceutical composition for transdermal administration to a human or lower animal subject comprising a safe and effective amount of a pharmacologically active compound or a prodrug thereof, an aqueous ethanol solvent containing from 15 to 75% ethanol by volume, and a penetration enhancer selected from certain 1-alkylazacycloheptan-2-ones and cis-olefin compounds of the formula CH3(CH2)xCH=CH(CH2)yR<3> where R<3> is CH2OH, CH2NH2 or COR<4> and R<4> is OH or (C1-C4)alkoxy, x and y are each an integer from 3 to 13 and the sum of x and y is from 10 to 16; methods for their use in treating various illnesses in a human or lower animal by transdermal administration of said composition.
Drugs covered by this patent
- Androgel (TESTOSTERONE) · Besins Hlthcare
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.