Bosentan Therapy for Pulmonary Arterial Hypertension: Actelion's slide show presentation to the FDA.
FDA Approves First Oral Medication for Pulmonary Arterial Hypertension: Describes the trial results and subsequent approval of Tracleer.
MedlinePlus: Bosentan: Provides information on usage, precautions, side effects and brand names when available. Data provided by government agencies and health-related organizations
Tracleer: Features an overview of pulmonary hypertension, prescribing information for US residents, and press releases.