What is Cialis? An

Cialis is a medicine that is used primarily to treat erectile dysfunction (ED) in men.

1. Mechanism of action

-contains the active substance tadalafil. Tadalafil inhibits an enzyme called phosphodiesterase-5 (PDE-5). Inhibition of PDE-5 leads to an increase in the concentration of cyclic monophosphate guanosin (cGMP) in the cavernous tissue of the penis. Increased cGMP causes relaxation of smooth muscles in the penis, allowing greater blood flow to cavernous tissue and, consequently, erection.

2. Use and considerations

-Cialis can be taken according to needs (on demand) or in a regular daily dose (in the case of the daily version).

-however, he has certain contraindications and precautions. It should not be taken by men who take nitrates, as the combination can cause a drastic drop in blood pressure and put health at risk. Possible side effects should also be taken into account, including headaches, heartburn, back pain and facial redness, among others.