TRANSDERMAL PREPARATION

摘要

Provided is a transdermal preparation such that lidocaine release properties can be controlled well with little skin irritation while sufficient adhesiveness is maintained when applied to the skin. The transdermal preparation has an adhesive layer that holds a drug and is formed on a support medium. The transdermal preparation is characterized by the adhesive layer containing at least a thermoplastic elastomer and more than 300 parts by weight liquid paraffin to 100 parts by weight of that elastomer, and by there being 10 wt% or less of a tackifier in the adhesive layer. The transdermal preparation is also characterized by containing lidocaine and an organic acid.