PDE-5 inhibitors
Indication: 1L ED
E.g. sildenafil PO
MOA; inhibit PDE-5, preventing cGMP breakdown,
allowing erection to be maintained
SEs: flushing, headaches, myalgia, dyspepsia, blue/green vision
CI: nitrate use, HTN, arrhythmias, retinal disorder, stroke, angina, MI, renal/hepatic impairment, peptic ulcer
Interactions; many, particularly nitrates (e.g. GTN)