| abstract |
The present invention provides a microneedle array in which a drug is held only at the distal end of a microneedle, and a method of manufacturing the same. The microneedle array 2A in which the drug is held only at the tip of the microneedles is manufactured by microneedle welding, that is, a microneedle array 2 is manufactured using a water-soluble polymer as a material, and b) (C) attaching the tip of the microneedle array 2 to the drug solution 1 for a short period of time. When the drug solution (1) is used as an aqueous solution, the biodegradable polymer is made water-soluble, and the biodegradable polymer is dissolved in the aqueous solution at a high concentration to increase the viscosity, the attached drug becomes integrated with the micro needle, It is peeled off and does not fall off. |