The top 4 companies challenged a pre-launch of the Celebrex generic product next year

The top 4 companies, Yuhan Corporation, Daewoong Pharmaceutical, Hanmi Pharmaceutical and Chong Kun Dang, has begun to prevent preoccupation of a generic drug, Celebrex (Celecoxib), the blockbuster-level anti-inflammatory analgesic drug.

Although Celebrex will be expired with its product patent in the coming June, the companies have had difficulties to stop preoccupation of the generic drug du...