Satisfaction of Patients With Erectile Dysfunction With the Use of Sildenafil Oral Suspension Compared to Orodispersible Tablets

Inclusion Criteria: * Age 18-75 * Male * Sexually active (at least 2 sexual encounters per week) * IIEF-EF between 11 and 25 at baseline Exclusion Criteria: * hypogonadism (total testosterone \< 3.5 ng/mL) * previous pelvic surgery * ED on a neurogenic basis * concomitant use of other ED therapies * conical therapy with nitrates or other contraindicated drugs in combination with sildenafil * hypersensitivity to the active ingredient * patients for whom sexual activity is not recommended (e.g. patients with serious cardiovascular disorders, such as unstable angina or severe heart failure). * patients who have lost vision in one eye due to non-arteritic anterior ischemic optic neuropathy (NAION), whether or not this event was related to previous use of a phosphodiesterase type 5 (PDE5) inhibitor * patients with severe hepatic impairment, hypotension (blood pressure \<90/50 mmHg), recent history of stroke or myocardial infarction and known hereditary degenerative retinal diseases, such as retinitis pigmentosa * patients treated with guanylate cyclase stimulants, such as riociguat.