COMPOSITION FOR PREVENTING OR TREATING OSTEOARTHRITIS OR FOR RELIEVING JOINT PAIN

摘要

(1) piroxicam or a pharmaceutically acceptable salt thereof, and(2) a core polymer in which the PYRXYCAM or a pharmaceutically acceptable salt thereof is encapsulated;A cationic polymer that is non-covalently mixed at one end with the core polymer and the opposite end provides positive charge to the surface of the carrier; AndAn injectable composition for preventing or treating osteoarthritis or a joint pain relief comprising microcapsules containing a capsule for drug administration containing an encapsulating polymer containing a coating polymer partially or wholly covering the surface of the core polymer, , It is possible to improve the retention of the components of the pycoxycam in the joints and to prevent or treat osteoarthritis after a single administration or to maintain the effect of pain relief for a long time.;