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:
Feb. 25, 2014
Filed:
Jan. 05, 2011
Taiki Shibata, Higashikagawa, JP;
Yuichiro Mabuchi, Higashikagawa, JP;
Kenichi Hattori, Higashikagawa, JP;
Takashi Kamakura, Higashikagawa, JP;
Taiki Shibata, Higashikagawa, JP;
Yuichiro Mabuchi, Higashikagawa, JP;
Kenichi Hattori, Higashikagawa, JP;
Takashi Kamakura, Higashikagawa, JP;
Teikoku Seiyaku Co., Ltd., Kagawa, JP;
IBSA Institut Biochimique SA, Massagno, CH;
Abstract
An external patch containing diclofenac hydroxyethylpyrrolidine prepared by laminating an adhesive layer on a backing, wherein said adhesive layer is characterized by comprising 5-50% by weight of styrene•isoprene•styrene block copolymer, 20-50% by weight of a tackifier resin, 5-70% by weight of a softening agent, and 0.5-20% by weight of one or more solubilizers selected from N-methyl-2-pyrrolidone, propylene glycol and dimethyl sulfoxide as essential ingredients, and 0.5-20% by weight of diclofenac hydroxyethylpyrrolidine as an active ingredient. The patch has excellent transdermal absorption, less skin-irritation and excellent stability of the drug.