Overview
Open Interventions → Pulmonary vasodilators. Choose Off, On. Effect levels and flow targets represent illustrative modeled responses; they are not clinical dose instructions.
A PDE5 inhibitor such as tadalafil or sildenafil slows cGMP breakdown and supports pulmonary vascular smooth-muscle relaxation. This is a representative class response, not an individual drug-dose model.
The paused reference covers the route (Oral maintenance treatment after initiation and titration.), example doses/settings, indications, adverse effects, contraindications/precautions and monitoring. These details are available after the intervention is selected.
What to monitor in the reference: Blood pressure/perfusion, interactions, renal/hepatic function, symptoms, biomarkers and RV response.