PERCUTANEOUS ABSORPTION TYPE PATCH MEMANTINE PREPARATION

摘要

The purpose of the present invention is to provide a patch preparation containing memantine or a pharmaceutically acceptable salt thereof, the patch preparation being produced while inhibiting memantine volatilization to a sufficient level. The patch preparation of the percutaneous absorption type comprises a support, a drug-containing layer, and a release liner, and is characterized in that the drug-containing layer comprises both memantine or a pharmaceutically acceptable salt thereof and a pressure-sensitive adhesive composition containing free carboxyl groups and/or phenolic hydroxy groups.