Hisamitsu Pharmaceutical Company, Inc.

Kenji Ishigaki

Takito Shima

Akio Takeuchi

Kumi Morimoto

Takashi Yasukochi

Naoki Yamamoto

Yasunari Michinaka

Toshiyuki Matsudo

Hideaki Ohashi

Kaori Yamaguchi

Patch and package thereof

A patch comprises a backing layer and an adhesive layer, wherein the adhesive layer contains at least one selected from the group consisting of butorphanol and pharmaceutically acceptable salts thereof, and contains an adhesive base and an antioxidant containing a sulfur atom in its molecule.

Patch

Provided is a medicated patch containing a medicinal agent, an adhesive base material and a tackifier, where the medicinal agent is varenicline or a pharmaceutically acceptable salt thereof, the adhesive base material is a rubbery adhesive base material and the tackifier is a rosin-based tackifier selected from the group consisting of rosin, rosin derivatives and hydrogenated products of the foregoing, or a non-rosin-based tackifier selected from the group consisting of aliphatic hydrocarbon resins and alicyclic hydrocarbon resins, and when a non-rosin-based tackifier is added as the tackifier, a solubilizer for the medicinal agent is further added, the solubilizer containing an alcohol-based solubilizer having at least a solubility parameter of 20-35.

Medicated patch

Provided is a medicated patch containing a medicinal agent and an adhesive base material and having an acid value of no greater than 28, where the medicinal agent is varenicline or a pharmaceutically acceptable salt of varenicline.

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Tsukuba, Japan

Kenji Ishigaki