Cenforce 120 is a medicine for men between 18 and 65 years of age. The medication is commonly known as Sildenafil and comes in the form of blue colored tablets. What sildenafil citrate does is help men get and keep an erection. The drug does this by increasing blood flow to the area of stimulation. Cenforce D increases the level of chemicals like serotonin and norepinephrine in the body. Sildenafil Citrate Tablets Chemicals like serotonin send messages to the nerves, and this is what leads to actions like ejaculation. It is the medicine that helps with problems such as premature ejaculation. Ejaculation before, during, or shortly after penetration is a disorder in which a man ejaculates before he consciously does so with minimal stimulation.