PDE5 Inhibitors: The only oral medications to improve erectile function are known as pde5 inhibitors. They improve penile blood flow in response to stimulation by amplifying nerve output, usually resulting in improved rigidity to allow for completion of intercourse. Patients on nitrates cannot takes these pills. Other medications are used via insertion or injection into the penis for those who fail pde5i.
Answered 5/31/2013
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