Bosentan Home>Pharmacy>Drugs_and_Medications>B>Bosentan     Web Pages Tracleer Features an overview of pulmonary hypertension, prescribing information for US residents, and press releases. FDA Approves First Oral Medication for Pulmonary Arterial Hypertension Describes the trial results and subsequent approval of Tracleer. Pharmacodynamics and Drug Action PDF report of an investigation into potential liver damage from bosentan use. [Acrobat Reader required] Bosentan Therapy for Pulmonary Arterial Hypertension Actelion's slide show presentation to the FDA.