United Therapeutics Corporation is an American biotechnology company headquartered in Silver Spring, Maryland. The company focuses on the development and manufacturing of drugs for the treatment of pulmonary arterial hypertension and other pulmonary and vascular-related diseases. Their main drugs include therapies for the treatment of pulmonary arterial hypertension and carcinoid syndrome. United Therapeutics is also involved in research and development of new drug formulations in the field of regenerative medicine and organ transplantation. The company is known for its innovative approach to treating pulmonary diseases and comprehensive research in the field of biotechnology. Shares of United Therapeutics Corporation are publicly traded on the NASDAQ stock exchange.