Sildenafil cenforce 100mg is a highly effective oral medication used to treat erectile dysfunction, commonly known as impotence. With its active ingredient Sildenafil Citrate, cenforce 100mg belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Consume cenforce 100mg orally with a glass of water 30 minutes or an hour before having sexual activity. Its effects begin within 15 minutes after taking the drug and remains for four to five hours after the intake of it.