Phosphodiesterase Type 5 Inhibitors for the Treatment of ...

phosphodiesterase-5 (PDE5) such as sildenafil (Viagra), tadalafil, and vardenafil are currently used for erectile dysfunction (ED). However, several adverse effects have been recorded in clinical trials, including priapism and visual disturbances.3 Furthermore, ... Compound 1 was a good PDE5 inhibitor (IC ................
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