Sildenafil / Tadalafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil / Tadalafil treats erectile dysfunction by increasing blood flow to the penis .
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Sildenafil / Tadalafil is in a class of medications called phosphodiesterase (PDE) inhibitors. Sildenafil / Tadalafil treats erectile dysfunction by increasing blood flow to the penis .