Men who have trouble getting or keeping an erection often take Cenforce 100 mg pills to help. They contain sildenafil citrate, a pill that helps get more blood to the penis, which makes it possible to get an erection when you're feeling sexually excited. There is one important thing to keep in mind, though: Cenforce 100 mg pills should only be taken with the help of a doctor. They might not work for everyone and are not a fix for ED. Also, they might have side effects or mix badly with other medicines, so it's very important to do what your doctor tells you and get medical help if you need it.