Tadalafil is one of the most recognized treatments for erectile dysfunction, and is used to make both generic Cialis, and its brand name counterpart. Tadalafil is a chemical that falls under the category of PDE5 inhibitors, a type of substance that breaks down the action of the PDE5 enzyme, which is often responsible for the onset of erectile dysfunction. PDE5 causes ED by narrowing down the blood vessels in the penile region, leaving the penis bereft of the necessary amount of blood to become rigid and be useful for sexual intercourse.
Generic for Cialis drugs counter this effect by inhibiting PDE5 and allowing the blood vessels to expand back to their normal size. When the flow of blood is restored, enough blood can reach and remain in the penis for it to achieve and maintain an adequate erection. However, Tadalafil has no effect on sexual drive, so physical stimulation is still a must for a satisfying sexual experience. This is generally how all PDE5 inhibitors work, but Tadalafil has something more to add to this, and that is its longer duration of action, which is made possible by its longer half life. Generic medications made with Tadalafil include Apcalis and Tadacip.