ED is a condition that affects men and is characterized by the inability to get or keep an erection that is firm enough for sexual activity. It can cause emotional and physical discomfort in those affected, especially when it interferes with a relationship. Fortunately, ED can be treated with Cenforce professional 100 mg . The black Viagra pills work to relax the blood vessels in your penis, allowing for increased blood flow and helping you achieve an erection during intimate stimulation.