Patent · US Active

Transdermally absorbable preparation

US8431152B2 · kind B2 · utility

0Cited by

3References

11Claims

0Family size

Assignee

HISAMITSU PHARMACEUTICAL CO., INC. · JP

Inventors

Mitsuru Kuribayashi · Tsukuba, JP
Toshiro Yamaguchi · Tsukuba, JP

Key dates

Filing date	Feb 28, 2006
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Nov 18, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/145
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A transdermally absorbable preparation that even when a drug with poor solubility in a base is added in high concentration, is stable over time and can suppress crystallization of the drug, excelling in transdermal absorbability. There is provided a transdermally absorbable preparation, comprising a base and, added thereto, at least composite particles which are composed of a silicate compound and an organic acid and a drug.

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