Joan is currently employed at Synergy Companies as a psychologist. His team is dedicated to looking for the root causes of depression in the patients they are treating and some of the cases have been of men going through Erectile Dysfunction (ED). These patients are anxious and lose confidence because of the problems in ejaculating, soft erection and erections that do last for a very short while. Viagra 150 mg is a potential medicine that constitutes a powerful ingredient referred to as Sildenafil which works effectively in relaxing the blood vessels of the penis and make it erect for a longer period.