Patent · US Expired

Polymeric diffusion matrix containing estradiol diacetate

US4291014A · kind A · utility

29Cited by

13References

16Claims

0Family size

Assignee

Key Pharmaceuticals, Inc. · US

Inventors

Alec D. Keith · Miami, US
Wallace Snipes · State College, US

Key dates

Filing date	Jul 11, 1980
Grant date	Sep 22, 1981
Priority date	—
Expiry date	Jul 11, 2000

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61L15/225
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

There is disclosed a polymeric diffusion matrix for the sustained release of estradiol diacetate by delivery to a patient requiring uterine wall maintenance or other types of estrogen therapy wherein the matrix comprises a polar plasticizer, polyvinylalcohol, polyvinylpyrrolidone, and a pharmaceutically effective amount of estradiol diacetate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.