What is Cenforce 100 Blue Pill? Cenforce 100 blue pill is an oral medication designed to treat erectile dysfunction in adult men. It contains sildenafil citrate, a type of phosphodiesterase type-5 (PDE-5) inhibitor. PDE-5 inhibitors work by relaxing the blood vessels in the penis, allowing blood to flow more freely during sexual stimulation, resulting in a firmer and longer-lasting erection....