Tadalista 2.5 is paired with tadalafil, which cures premature ejaculation and male erectile dysfunction. An erection can be achieved following sexual stimulation by increasing blood flow to the penis, which is how tadalafil, a phosphodiesterase type 5 inhibitor, works. One medicine that facilitates easier blood flow is tadalafil. Tadalafil relaxes the muscles in the blood vessels of erectile dysfunction patients, causing the blood flow through the veins to increase. For a man to get an erection, the blood vessels must be in this condition.