This drug is a PDE 5 inhibitor. It helps to arouse people sexually. Fildena 150 reviews that the drug is marketed as Sildenafil. How to take the medicine Take it about an hour before any sexual activity. People use it to treat impotence in men. It helps in increasing blood flow in men. It is a well-known drug in the market. It helps in erection. That medicine usually takes between 30 and 1 hour. It wants to be used chemically in drug sildenafil in men. It helps in sex. The drug Fildena is given according to age.