Cenforce 100 blue pill is an oral medication for men that is used to treat erectile dysfunction (ED). This medical condition makes men unable to achieve or sustain an erection. The drug works by relaxing the muscles of blood vessels and increasing the blood flow to the penis. Although it is an oral solution, men who experience this condition should consult a doctor before taking the drug. The recommended starting dose is 50 mg per day, taken one hour before sexual activity. As you get used to the medication, you may increase the dosage to 25 mg, or even 100 mg, depending on your tolerance.