Fildena 150 Extra Power is a highly effective and potent sexual depressant that improves erectile and male abilities. buy at lowest price. Fildena 150 tablets contain the active ingredient Sildenafil, which works by increasing blood flow to the penis. It is indicated as a PDE5 inhibitor. When men have it, a man can have an erection for up to half an hour. In some cases, an erection can last up to four hours. It depends on his current state of health.