Since 1964 Opocrin has been involved in research, production and marketing of active pharmaceutical ingredients derived from animal organs and tissues. Lifesaving drugs such as heparin, low molecular-weight heparin, sulodexide, and pulmonary surfactant are the active ingredients of greatest interest to the company. Opocrin has recently broadened its range of offerings with the production of iron complexes such as sodium gluconate, ferric sodium saccharate and ferric protein.