Suhagra 100 mg is used by men for strong erection. The drug contains a major ingredient called sildenafil citrate. Men who have increased blood flow to the blood vessels in the penis. If you eat a high fat diet this medicine will take a little longer to affect your body. If you miss a dose of this medicine, you should take it as soon as you remember. But avoid taking the missed dose if you are too close to the next dose. This drug is not for children and women under 18 years of age.