Alliance Pharmaceutical Corp. and its subsidiaries engage in the identification, design, and development of medical products in the United States. It focuses on developing its lead product OXYGENT, an intravascular oxygen carrier designed to augment oxygen delivery in surgical patients during surgery. OXYGENT is ... used as blood substitute to reduce the need for donor blood transfusions during surgery. The company has collaborative partnerships with Beijing Double-Crane Pharmaceutical Co., Ltd.; LEO Pharma A/S; Il Yang Pharm. Co., Ltd.; and MultiCell Technologies, Inc. Alliance Pharmaceutical was founded in 1983 and is based in La Jolla, California.