Cialis Professional works by inhibiting phosphodiesterase-5 (PDE5), an enzyme that breaks down cyclic guanosine monophosphate (cGMP). This is key because cGMP plays a crucial role in achieving and maintaining an erection.
- Increased cGMP levels relax the smooth muscles in the blood vessels of the penis. This relaxation increases blood flow into the penis. The resulting increased blood flow facilitates penile engorgement and erection.
Cialis Professional’s tadalafil component is a highly selective PDE5 inhibitor. This selectivity minimizes side effects by reducing its impact on other phosphodiesterases in the body. The drug’s long half-life allows for sustained efficacy.
Tadalafil’s effects generally last for up to 36 hours. This extended duration differs significantly from shorter-acting PDE5 inhibitors. This prolonged action provides flexibility in timing sexual activity.
Remember, while Cialis Professional helps facilitate erections, sexual stimulation is still necessary to initiate the process. The drug enhances the body’s natural response, rather than directly causing an erection.


