External preparation for application to the skin containing...

Details External preparation for application to the skin containing... External preparation for application to the skin containing...

A - Human Necessities

61

K

A61K 31/16 (2006.01) A61K 9/70 (2006.01) A61K 31/165 (2006.01)

Patent

CA 2064325

The present invention is directed to an external preparation for application to the skin containing lidocaine. The preparation 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 over a long period of time.

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