Centurion Laboratories produces the generic drug Cenforce 25 mg, which contains sildenafil citrate, the same active component in Viagra.  Men's erectile dysfunction (ED) is the main reason it is prescribed.

Sildenafil citrate functions as a phosphodiesterase type 5 (PDE5) inhibitor. By blocking the PDE5 enzyme, it increases levels of cyclic guanosine monophosphate (cGMP), leading to the relaxation of smooth muscles and dilation of blood vessels in the penis. This process enhances blood flow, facilitating an erection when combined with sexual stimulation.