PDE5 helps control blood flow to the pulmonary arteries. By stopping PDE5 from working, PDE 5 inhibitors (ie sildenafil and tadalafil) cause the blood vessels to relax. This increases blood flow to the lungs and lowers blood pressure.
PDE5 helps control blood flow to the pulmonary arteries. By stopping PDE5 from working, PDE 5 inhibitors (ie sildenafil and tadalafil) cause the blood vessels to relax. This increases blood flow to the lungs and lowers blood pressure.