| abstract |
Disclosed is a percutaneous absorption preparation having a high bioavailability of a target substance. A conical or pyramid having a support, a base made of a polymer substance that is soluble in the body and is spinnable, and a target substance held on the base, formed on the support. A fine needle having a shape, wherein the support is hard, and the fine needle has a first portion having a tip portion and a bottom portion and a bottom portion and containing the target substance. A transdermal absorption preparation, wherein the first part has a length in the insertion direction that is equal to or less than the length of a fine needle that is inserted into the body during administration of the transdermal absorption preparation. [Selection] Figure 1 |