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. 27, 1998
Filed:
Jun. 10, 1994
Applicant:
Inventors:
Masahiro Ono, Kagawa-ken, JP;
Mitsuji Akazawa, Kagawa-ken, JP;
Michiko Seki, Kagawa-ken, JP;
Kiyomi Iwamoto, Kagawa-ken, JP;
Ryoji Konishi, Kagawa-ken, JP;
Assignee:
Teikoku Seiyaku Kabushiki Kaisha, Kagawa-Ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424448 ; 424985 ; 424486 ; 424487 ; 424489 ; 424 7802 ; 514817 ; 514944 ;
Abstract
An external preparation for application to the skin containing lidocaine which comprises a drug-retaining layer placed on a support, wherein said drug-retaining layer comprises an adhesive gel base and 1 to 10% by weight of lidocaine, said base comprising a water-soluble high molecular weight substance, water and a water-retaining agent, which can release the active lidocaine gradually and constantly so that lidocaine is transdermally absorbed for a long period of time.