Male erectile dysfunction is treated with a drug known as Cenforce 25. The drug in question contains a component called sildenafil, which helps a man's penile tissues receive more blood flow. Take this medication 30 minutes prior to engaging in sexual activity with your partner if you want to have long-term sex. This medication should only be taken once a day. After consuming it, the effects begin to fade 4-6 hours later. Take this medicine as prescribed by your doctor. Don't take this medication with anything that contains fat in it. Additionally, you can take this medication with or without food.