abstract |
The present invention provides a microneedle, said microneedle smoothly stabbing into the skin of a patient and, therefore, being highly safe and convenient and enabling painless administration of a definite drug, and a microneedle array. A microneedle and a microneedle array, said microneedle comprising a pyramidal base part and a tip part located thereon, wherein the vertical angle of the tip is in the range of 15-60o, the bottom face diameter of the tip part is in the range of 1-20 µm, and the following requirement is satisfied: H/D=5 (1) wherein H represents the overall height; and D represents the bottom face diameter of the pyramidal base part. |