After consuming the pill the effect of the dose can be seen within 20 to 30 minutes as it takes sometime to dissolve in the blood. The internal working of the pill is quite simple and efficient to cure impotency immediately. As the gelatin capsules which encapsulates the active components gets dissolve, Sildenafil the chief component enters the body and starts working. It undermined the functioning of PDE-5 of Phosphodiesterase Type5 which is responsible for influencing the blood flow resulting in partial or no erectile functioning. As the PDE- 5 is inhibited the blood flow to the male organ of reproduction enhances and stay in the organ which results in rigidity of the organ and sustentation or hard on. The effect of Sildenafil is known to last for at least four hours and maximum 6 hours.