Tadalafil is a chemical compound synthesized in the late 20th century. It is the second most important and popular aphrodisiac after sildenafil. Like Viagra, it blocks the action of type 5 phosphodiesterase (PDE5), and increases blood flow to the cavernous bodies located in different places of the body. The highest concentration of which is in the genitals. The advantages of tadalafil include its long period of action, in some cases reaching up to 32 hours, which Viagra can not boast of, which lasts 4-5 hours. Tadalafil is used not only in medicine to restore the natural mechanism of blood supply to the penis, but can also be used as a means to achieve new sensations in sex. It is in the second case that the aphrodisiac is more in demand and is in great demand.