The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Apr. 11, 1994
Karin Wolter, Melsbach, DE;
Walter Muller, Neuwied, DE;
Gunter Simon, Hillesheim, DE;
Christa Nalbach, Leutesdorf, DE;
Hans-Rainer Hoffmann, Neuwied, DE;
LTS Lohmann Therapie-Systeme GmbH & Co. KG, Neuwied, DE;
Abstract
The invention relates to a patch for transdermal administration of volatile pharmaceutically active ingredients of chemically basic nature which comprises a multi-element system comprising (a) a matrix having distributed therein as the drug said volatile active ingredient or a physiologically acceptable salt thereof, the matrix comprising a pressure-sensitive adhesive, (b) an element of a pressure-sensitive adhesive composition which--where (a) contains a salt--contains basic groups to liberate the free base from its salt, (c) a backing layer impermeable to the diffusable ingredients of (a) and (b), and (d) a release liner impermeable to the diffusable ingredients of (a) and (b), matrix (a) or at least a part of (b), whichever is in contact with release liner (d), having a tack sufficient for affixing the patch to the skin, any part of (b) positioned between matrix (a) and release liner (d) being permeable for the deprenyl or the salt thereof or both. The invention also relates to a process for preparing such patch and to a process for treating a patient suffering from Parkinson's or Alzheimer's disease with such patch.