What is Sildenafil?
Sildenafil or Viagra is a PDE5 (Phosphodiesterase type 5 inhibitors) medicine that is commonly used for erectile dysfunction treatment. Erectile dysfunction is a sexual dysfunction in which Man suffering from it can not get enough erection or he is not able to maintain an erection for longer times. Sildenafil is also used to treat pulmonary arterial hypertension, which causes short breath and dizziness.