Transdermal drug delivery matrix for coadministering estradiol and another steroid
US5783208A · kind A · utility
103Cited by
12References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 19, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jul 19, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P15/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A matrix type transdermal patch for coadministering estradiol and another steroid wherein the matrix is composed of a N-vinyl-2-pyrrolidone-containing acrylic copolymer pressure sensitive adhesive, estradiol, the other steroid, and optionally a permeation enhancer, and the respective fluxes of estradiol and the other steroid from the matrix are independent of the respective concentrations of the other steroid and estradiol in the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.