Par Pharmaceutical: High-Quality, Cost-Effective Generic Products Par Pharmaceutical, headquartered in Chestnut Ridge, New York, develops, manufactures and markets safe, innovative and cost-effective generic pharmaceutical and branded injectable products that help improve patient quality of life. Par, among the top leaders in the U.S. generics industry, possesses a portfolio that includes sterile injectables, alternative dosage forms and many other differentiated products. Par is advancing a robust research and development (R&D) pipeline of potential products. Par is an operating company of Endo International plc, a highly focused generics and specialty branded pharmaceutical company delivering quality medicines to patients through excellence in development, manufacturing and commercialization.