Patent ID: 11911508
Assignee: INVENTAGE LAB INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. Dutasteride-containing microparticles, comprising dutasteride and a biodegradable polymer,
wherein,
the microparticles have a dutasteride drug evenly distributed in a spherical biodegradable polymer,
the microparticles have an average particle diameter of 20 to 70 μm,
the microparticles contain the biodegradable polymer and dutasteride at a weight ratio of 3:1 to 9:1,
the microparticles are capable of preventing an initial excessive release of dutasteride after injection into a body, and
the microparticles are capable of maintaining a drug administration effect of dutasteride according to an initial release after injection into the body.