In order to treat erectile dysfunction, tadalista 40mg active ingredient increases blood flow to the penis.

By blocking the Phosphodiesterase type 5 (PDE5) enzyme, tadalista 40mg aids in the treatment of ED. 

In response to sexual stimulation, this process raises the amount of Cyclic Guanosine Monophosphate (cGMP), which improves penile blood flow and aids in achieving and maintaining an erection.