Transdermal absorption preparation
A transdermal absorption promotion composition comprising the following components (a), (b), and (c) and a transdermal absorption preparation comprising the following components (a), (b), (c), and (d) are disclosed. (a) propylene glycol (b) a polyol fatty acid ester (c) lauromacrogol (d) a drug component The transdermal absorption promotion composition and transdermal absorption preparation not only exhibit an excellent transdermal absorption promotion effect, but also exhibit superior skin-permeability, even if a drug having a relatively high lipophilic property and poor transdermal absorbability is used, exhibit a favorable feeling of use, and are safe and stable.
1 . A transdermal absorption promotion composition comprising the following components (a), (b), and (c):
(a) propylene glycol,
(b) a polyol fatty acid ester, and
(c) lauromacrogol.
2 . The transdermal absorption promotion composition according to claim 1 , wherein the components (b) and (c) are mutually soluble with the component (a).
3 . The transdermal absorption promotion composition according to claim 1 or claim 2 , wherein the ratio of the total weight of the component (b) and component (c) to the weight of the component (a) is 0.01-99 and the weight ratio of the component (c) to the component (b) is 0.1-10.
4 . A transdermal absorption preparation comprising the following components (a), (b), (c), and (d):
(a) propylene glycol,
(b) a polyol fatty acid ester,
(c) lauromacrogol, and
(d) a drug component.
5 . The transdermal absorption preparation according to claim 4 , wherein the component (d) is a drug with comparatively high lipophilic properties.
6 . The transdermal absorption preparation according to claim 4 , wherein the preparation is in the form of an ointment, gel, cream, gel-like cream, liquid, lotion, aerosol, liniment, plaster, poultice, or reservoir-type patch.
7 . A homogeneous liquid preparation basically comprising the components (a) to (d).
8 . An oily ointment or oily cream preparation comprising the components (a) to (d) and an oily base.
9 . A method of promoting transdermal absorption of a drug in a transdermal absorption preparation comprising applying the transdermal absorption preparation of claim 4 to the skin.