The medication cenforce 25 mg is used to treat impotence and erectile dysfunction. Sildenafil Citrate is an ingredient in this medication that helps men's penile tissues receive more blood flow. Only men who are at least eighteen years old should use this medication. This medication is taken half an hour before sexual activity so that you can enjoy sexual activity with your partner. This medication can be taken either before or after food. Don't take this medication with cold beverages or fatty meals. Follow your doctor's advice when taking this medication.