Cialis, whose generic name is Tadalafil, is a medication used to treat erectile dysfunction (ED) in men, much like Viagra (Sildenafil). It works by increasing blood flow to the penis, allowing men to achieve and maintain an erection when sexually aroused. Here's how Cialis helps the male body:
Relaxation of Blood Vessels: Cialis is also a phosphodiesterase type 5 (PDE-5) inhibitor, similar to Viagra. It functions by inhibiting the enzyme PDE-5. When a man becomes sexually aroused, nitric oxide is released in the body, leading to the production of cyclic guanosine monophosphate (cGMP). cGMP is responsible for relaxing the smooth muscle cells in the blood vessels of the penis. By inhibiting PDE-5, Cialis helps maintain higher levels of cGMP, which, in turn, causes the blood vessels in the penis to relax and dilate.
Increased Blood Flow: As the blood vessels in the penis relax and dilate, they allow more blood to flow into the penile tissues. This increased blood flow results in the engorgement and rigidity of the penis, leading to an erection.
Erection Maintenance: Cialis, similar to Viagra, does not directly induce an erection but assists the natural process of achieving an erection when sexual arousal occurs. It helps in sustaining the erection by preventing the breakdown of cGMP, which prolongs the relaxed state of the blood vessels in the penis, allowing the erection to persist throughout sexual activity.
One key difference between Cialis and Viagra is the duration of action. Cialis is often referred to as the "weekend pill" because its effects can last for up to 36 hours, while Viagra typically lasts for about 4-6 hours. This extended duration allows for greater flexibility in choosing the timing of sexual activity.
