Actelion Ltd, a biopharmaceutical company, discovers, develops, and commercializes drugs for diseases with unmet medical needs. It offers Tracleer, a dual endothelin receptor antagonist for the treatment of pulmonary arterial hypertension (PAH), a chronic and life-threatening disorder that severely compromises the functions of the lungs and heart; and Opsumit, an orally available endothelin receptor antagonist for the treatment of PAH to delay disease progression. The company also provides Veletri, an intravenous prostacyclin for the treatment of PAH to enhance exercise capacity; and Ventavis, an inhaled synthetic analog of prostacyclin for the treatment of PAH to enhance a composite endpoint consisting of exercise tolerance, symptoms, and lack of deterioration. In addition, it offers Valchlor, a chemotherapeutic agent for the treatment of stage IA and IB mycosis fungoides-type cutaneous T-cell lymphoma in patients; and Zavesca, an oral treatment for patients with mild to moderate type 1 Gaucher disease for whom enzyme replacement therapy is unsuitable. Actelion Ltd markets its products in Switzerland, the United States, Europe, Japan, China, Russia, Mexico, and internationally. The company was founded in 1997 and is headquartered in Allschwil, Switzerland.
