A well-known component of Cenforce Sildenafil medication, is also included in Viagra. Cenforce is a member of the class of medications called phosphodiesterase 5 inhibitors. Increased blood flow to the penis results from Cenforce's ability to relax the smooth muscle in the penile blood artery. It is important to remember that using this medicine to achieve an erection requires sexual stimulation. Before making love, take this medication for around 30 to 60 minutes. Aim to avoid consuming grapefruit or grapefruit juice while taking sildenafil citrate. Keep your medications out of direct sunlight and dampness and at room temperature, between 68 and 77 degrees Fahrenheit.