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:
Nov. 30, 1999
Filed:
Jun. 06, 1996
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
A drug held or supported by an interface comprising a porous matrix is dissolved with a drug dissolution liquid containing a humectant, and the drug is transdermally delivered by iontophoresis. The humectant includes e.g. glycerin and other polyhydric alcohols, sugar alcohols, proline and other amino acids and acidic mucopolysaccharides. The concentration of the humectant may be about 1 to 50% by weight, and the concentration of proline or other amino acid or its salt may be about 1 to 30% by weight. The drug includes (1) a physiologically active peptide or protein with a molecular weight of 100 to 30,000 or (2) a nonpeptide physiologically active compound with a molecular weight of 100 to 1,000.