Base composition for microneedle patch and microneedle patch containing this base composition

摘要

PROBLEM TO BE SOLVED: To not only smoothly release a microneedle patch in a manufacturing stage, but also to obtain desired flexibility, flatness, flexibility and skin adhesion in a use stage, and to obtain moisture resistance in a storage stage. Providing a base composition for a microneedle patch and a microneedle patch containing the base composition. SOLUTION: The first HPMC contains a first hydroxypropyl methylcellulose (HPMC), a second HPMC, and a polyvinylpyrrolidone / vinyl acetate copolymer (PVP / VA), and the viscosity of the first HPMC is larger than the viscosity of the second HPMC. A base composition in which the weight ratio of the first HPMC to the second HPMC is 1: 0.1 or more and 1: 1.2 or less, and the amount of PVP / VA is 0.25% by weight or more and 2% by weight or less. [Selection diagram] None