| abstract |
And provides the optimum composition of the application liquid for micro needles when the drug is applied to the micro needles. The coating liquid for micro needles of the present invention is an aqueous solution containing water-soluble polysaccharides, a monosaccharide and / or a disaccharide, and a surfactant as essential ingredients of a base, wherein the proportion of the water- soluble polysaccharide in the base is from 2 to 60 mass% And the hardness of the coated product is 10 N or more. The water-soluble polyhydric alcohol may be contained in an amount of 30 to 95% by mass, the surfactant may be 0.05 to 5% by mass, and the water-soluble polyvalent alcohol may be 10% by mass or less. As the water-soluble polysaccharide, hydroxypropylcellulose, hyaluronic acid or carboxymethylcellulose is preferable. |