Best pharmaceutical companies in Rancho Cucamonga, CA

Amphastar Pharmaceuticals, Inc., headquartered in Rancho Cucamonga, California, established in 1996, is a recognized specialty pharmaceutical company that uses state-of-the-art, cGMP compliant facilities to develop, manufacture, and market injectable and inhalation products. In addition to the Corporate Headquarters, Amphastar has five manufacturing facilities located in the United States, China and Europe along with a state-of-the-art New Drug Research Center. Amphastar and its subsidiaries each have their own distinct focus that they skillfully bring together to meet the varied needs of the pharmaceutical industry.