PACKAGING

摘要

The objective of the present invention is to provide a method for preventing denaturation by oxygen of drugs inside a patch that is enclosed in a packaging container. The present invention is a packaging comprising a packaging container and a drug-containing patch that is enclosed inside the packaging container, wherein the amount of oxygen gas is 20 μL or less and the concentration of oxygen gas is 17.0 to 25.0 volume% in the packaging. This packaging does not have to comprise an oxygen absorber that is separate from the drug-containing patch. Further, the amount of oxygen gas may be 4 μL/mg or less per drug amount in the drug-containing patch.