Pulmonary Arterial Hypertension

About these medicines

Pulmonary arterial hypertension is high pressure in the arteries of the lungs, which strains the right side of the heart. Bosentan, ambrisentan (Pulmonext) and macitentan block endothelin, a substance that narrows those arteries.

They are started by specialists, need regular liver and blood checks, and must not be taken in pregnancy.