Suhagra 100 mg contains Sildenafil which belongs to the organization of drugs called Phosphodiesterase type five (PDE five) inhibitors. It is used to treat erectile disorder in guys. Erectile dysfunction (also known as impotence) is a sexual situation where a man can't sustain a hard erected penis that's required for everyday sexual activity. It happens due to reduced blood waft to the penis that's caused because of narrowing of the blood vessels presenting the penis.