Patent · US Expired

Percutaneously absorbable patch

US5820878A · kind A · utility

57Cited by

0References

7Claims

0Family size

Assignee

HISAMITSU PHARMACEUTICAL CO., INC. · JP

Inventors

Munehiko Hirano · Tsukuba, JP
Miyuki Shinmura · Tosu, JP
Masaki Kojima · Tsukuba, JP

Key dates

Filing date	Apr 28, 1997
Grant date	Oct 13, 1998
Priority date	—
Expiry date	Apr 28, 2017

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/57
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A percutaneously absorbable preparation-containing patch, wherein the preparation comprises: (1) a base comprising as essential ingredients a (A-B) n-A based elastomer wherein A is substantially a monovinyl-substituted aromatic compound polymer block, B is substantially a conjugated diolefin copolymer block, and n is an integer of 3-7, crotamiton, and a softening agent; and (2) at least two hormones, especially estrogen and luteal hormones, as active ingredients.

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