United Therapeutics is a biotechnology company that develops and manufactures pharmaceutical products for pulmonary arterial hypertension and certain cancers. It offers drugs including Remodulin, Tyvaso, Orenitram, Adcirca, and Unituxin, and develops technologies for organ transplantation such as xenotransplantation and organ manufacturing. The company serves medical institutions and healthcare providers involved in the treatment of pulmonary arterial hypertension, high-risk neuroblastoma, and organ transplantation.