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:
May. 12, 1998
Filed:
Jan. 17, 1997
Jurg Lutz, Binningen, CH;
Henning F Cierpka, Reinach, CH;
Drossapharm AG, Basel, CH;
Abstract
Sufficiently high blood benzopyrone levels cannot be achieved on oral administration of benzopyrone. From the point of view of pharmacokinetics and chronic application, the use of benzopyrone as an ointment is not optimal because the blood levels thus achievable cannot be controlled. It has now surprisingly been found that benzopyrone in a particular formulation as part of a transdermal dermal therapeutic system (TDS), after application to the skin, is released to the skin in a constant manner as a function of time and over a longer period owing to the absorption of perspiration, and that constant therapeutically effective blood and tissue levels of benzopyrone are achieved in humans, which levels are a factor of 50 higher than those following the oral administration of the same doses of benzopyrone.