| abstract |
PROBLEM TO BE SOLVED: In many cases, a transdermal or transmucosal absorption preparation cannot obtain a sufficient absorption amount, and development of an additive which enhances transdermal/transmucosal absorption of various drugs is desired. A composition for promoting transdermal and transmucosal absorption is provided by blending required components and hydroxyapatite. The maximum particle size of hydroxyapatite is 1 μm or less, preferably 0.1 μm or less, and the compounding amount of hydroxyapatite is 0.1 to 1000% by weight with respect to the compounded drug. [Selection diagram] None |