Treating high blood pressure in the lungs (pulmonary arterial hypertension) in certain patients. Tracleer is an endothelin receptor antagonist. It works by blocking a certain substance in the lungs, which helps to decrease blood pressure in the lungs.
Tracleer (Bosentan) is a dual endothelin receptor antagonist used to treat pulmonary artery hypertension (PAH). Tracleer enhances the patient's ability to exercise in addition to reducing the effects of PAH, by helping the heart pump the blood in an efficient manner. Tracleer is only available through a special regimen under a certified pharmacy.