Cenforce 25 Medicine can help with sexual difficulties such as impotence, erectile dysfunction, and premature ejaculation. This medication contains a component called sildenafil, which increases blood flow to the tissues of the male penis and relaxes the penile muscles. This medication can be used before or after meals. This medication's effects last 4 to 6 hours. Take this medication exactly as prescribed by your doctor. This medicine should not be taken with fatty foods or cold drinks.