BPH .
1.1 5mg Tadalafil5mgFDAPDE5 20mg.
PDE5 .
(Tadalafil) (ViagraSildenafil) (LevitraVardenafil) .
5mgTadalafil 5mgPDE5Tadalafil 20mg.
5mg (Tadalafil-5mg)PDE5 (K i =0.94nM) NO-cGMP 3.2 Doppler
(NO)cGMP Cyclic GMP.
EDBPH 5mg .
EDCialis .
5mg20mg 5mg .
