Patent · US Active

Transdermal therapeutic system comprising ion pair microreservoirs

US9089527B2 · kind B2 · utility

6Cited by

4References

13Claims

0Family size

Assignee

LTS Lohmann Therapie-Systeme AG · DE

Inventors

Thomas Hille · Neuwied, DE
Michael Horstmann · Neuwied, DE
Walter Mueller · Andernach, DE

Key dates

Filing date	Nov 16, 2007
Grant date	Jul 28, 2015
Priority date	—
Expiry date	Oct 11, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P43/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a transdermal therapeutic system which comprises a back layer that is impermeable to the active substance, and a peelable protective layer that is impermeable to the active substance and at least one matrix layer consisting of polysiloxanes and/or polysiloxane derivatives and containing micro-reservoirs. Said micro-reservoirs contain at least one ion pair from a pharmacologically active substance and an additive and either the active substance is nucleophilic and the additive is electrophilic or the active substance is electrophilic and the additive is nucleophilic.

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