Phosphodiesterase type 5
inhibitor is abbreviated as PDE 5
inhibitor. PDE 5 inhibitor prevents normal PDE 5 from
breaking down cGMP. Men can then have longer-lasting,
more rigid erections. Common PDE 5 inhibitors are as
sildenafil, varendafil, and tadalafil and are trademarked
respectively as Viagra, Levitra, and Cialis. PDE 5 inhibitors
can help men who have undergone prostate cancer treatment
and experience impotence as a result. PDE inhibitors,
however, will not help patients unless they become sexually
aroused.
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