Km Transderm Ltd.

Atsuyo Hamada

Masaoki Goto

Mitsuji Akazawa

Hiroyuki Ogino

Sadao Yukimoto

The present invention provides a transdermal absorption preparation in which a drug-containing adhesive layer is formed on a support, the aforementioned adhesive layer contains at least a thermoplastic elastomer and a higher fatty acid ester, and a content of a tackifier is not more than 10 wt %, which is superior in drug solubility and releasability, as well as adhesiveness to the skin and low irritation to the skin.

Transdermally absorbable preparation

The present invention provides a patch containing an adhesive layer maintaining a drug, which is formed on a support, wherein the aforementioned adhesive layer comprises a thermoplastic elastomer, a non-volatile hydrocarbon oil in an amount exceeding 50 parts by weight and not more than 800 parts by weight per 100 parts by weight of the elastomer, and rivastigmine or a salt thereof, and the aforementioned adhesive layer optionally further contains a tackifier at a content in the adhesive layer of not more than 10 wt %.

Rivastigmine-containing adhesive patch

The invention provides an adhesive sheet for skin, which shows sufficient adhesiveness to the skin and causes low skin irritation. The adhesive sheet contains an adhesive layer formed on a support, in which the adhesive layer contains at least a thermoplastic elastomer, a non-volatile hydrocarbon oil, and polyisobutylene, but no tackifier. The polyisobutylene is a medium molecular weight polyisobutylene with a viscosity average molecular weight of more than 100,000 and not more than 500,000. The invention also provides a percutaneous absorption preparation containing a drug or a pharmaceutically acceptable salt thereof in an adhesive layer of the inventive adhesive sheet for skin.

Adhesive sheet for attachment to skin and percutaneous absorption preparation using same

A patch containing a storage layer retaining a drug or a pharmaceutically acceptable salt thereof and an adhesive layer which are formed on a support, wherein the adhesive layer contains a thermoplastic elastomer, and a non-volatile hydrocarbon oil in more than 50 parts by weight and not more than 800 parts by weight per 100 parts by weight of the elastomer, and the adhesive layer optionally further contains a tackifier at a content of not more than 10 wt %.

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Higashikagawa, Japan

Atsuyo Hamada