difference between viagra and penegra

Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to acquire or keep an erection) in men. Sildenafil (Revatio) is used to insert the exploit to exercise in adults taking into account pulmonary arterial hypertension (PAH; tall blood pressure in the vessels carrying blood to the lungs, causing shortness of breath, dizziness, and tiredness). … Read more