General Information
Opsumit (macitentan) is a tissue-targeting Endothelin Receptor Antagonist. Endothelin Receptor Antagonists mediate a variety of deleterious effects, such as vasoconstriction, fibrosis, proliferation, hypertrophy, and inflammation.
Opsumit is specifically indicated for the treatment of pulmonary arterial hypertension (WHO Group I) to delay disease progression.
Opsumit is supplied as a tablet for oral administration. The recommended dose is 10 mg once daily.