Men with erectile dysfunction and impotence can be treated with Cenforce Viagra . A component of this jelly known as sildenafil aids in boosting a man's blood flow to his penis tissues. Take this jelly half an hour before sexual activity. This jelly can be taken either before or after a meal. This jelly takes four to six hours to take effect. Drink some water and this jelly. Only men over the age of 18 should consume this jelly.