Israel’s Teva has launched a generic version of Tracleer tablets in the US. The treatment allows sufferers of Pulmonary Arterial Hypertension (PAH) to exercise better and slows progression of the disease.  PAH is high blood pressure in the blood vessels of the lungs.

https://ir.tevapharm.com/investors/press-releases/press-release-details/2019/Teva-Announces-Launch-of-a-Generic-Version-of-Tracleer-bosentan-Tablets-in-the-United-States/default.aspx