C02KXAntihypertensives for pulmonary arterial hypertension↑ C02KbosentanC02KX01ambrisentanC02KX02sitaxentanC02KX03macitentanC02KX04riociguatC02KX05sotaterceptC02KX06ambrisentan and tadalafilC02KX52macitentan and tadalafilC02KX54