PATCH

摘要

A patch containing a drug, a metal salt, an adsorbent and a pressure-sensitive adhesive base, wherein the metal salt is a salt containing a substance capable of forming a drug salt by bonding to the drug or a component thereof, a content of the metal salt is the same or less number of moles of the substance capable of forming a drug salt by bonding to the drug or a component thereof when a drug salt is formed, and the adsorbent is an adsorbent that adsorbs a polar solvent contained in the patch.