The purpose of Cenforce 25 is to treat erectile dysfunction. Sildenafil citrate is an ingredient in this medication. The purpose of this medication is to improve blood flow to the panels. You can take this medication half an hour before sexual activity so that you can enjoy quality time with your partner. You can take this medication either way—before or after food. This medication can be taken with water. This medication should not be chewed. This medication takes four to five hours to take effect. This medication shouldn't be used by women or kids. You can take this medication as your physician has prescribed.