Patch preparation

Details Patch preparation Patch preparation

A - Human Necessities

61

K

A61K 9/70 (2006.01) A61K 31/565 (2006.01) A61K 31/567 (2006.01) A61K 47/10 (2006.01) A61K 47/14 (2006.01) A61P 15/12 (2006.01) A61K 47/32 (2006.01)

Patent

CA 2641248

The present invention aims at provision of a patch preparation having a small area and permitting adhesion for a long time. The present invention provides a patch preparation having an adhesive layer on at least one surface of a support, wherein the adhesive layer contains an adhesive, a poorly soluble drug, a first organic liquid component, a second organic liquid component, a third organic liquid component and crosslinked polyvinylpyrrolidone, the solubility of the poorly soluble drug in the first organic liquid component is not less than the solubility of the poorly soluble drug in the second organic liquid component, and the solubility of the poorly soluble drug in the second organic liquid component is not less than the solubility of the poorly soluble drug in the third organic liquid component.

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