Cenforce 100mg sildenafil tablet is a medication widely used for the treatment of erectile dysfunction (ED) in men. The primary active ingredient in Cenforce 100 is Sildenafil Citrate, a potent phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil Citrate was originally developed by Pfizer and is the same active ingredient found in the well-known drug Viagra.