Patent · US Expired

Transdermal therapeutic system comprising tulobuterol as active substance

US5254348A · kind A · utility

104Cited by

4References

9Claims

0Family size

Assignee

LTS Lohmann Therapie-Systeme GmbH Co. KG · DE

Inventors

Hans-Rainer Hoffmann · Neuwied, DE
Michael Horstmann · Neuwied, DE

Key dates

Filing date	Jan 28, 1991
Grant date	Oct 19, 1993
Priority date	—
Expiry date	Jan 28, 2011

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P37/08
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention relates to a transdermal therapeutic system with tulobuterol or one of the pharmaceutically acceptable salts thereof as active substance, comprising a backing layer which is substantially impermeable to active substances and at least one matrix layer which contains the active substance, which matrix layer comprises at least one styrene-1,3-diene-styrene block copolymer. The present invention is further directed to a process for the production of said transdermal therapeutic system.

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