How does tadalafil work:

How does tadalafil work is a medication commonly used to treat erectile dysfunction (ED), and it is the active ingredient in drugs like Cialis. It can also be used for other conditions, such as benign prostatic hyperplasia (BPH), a condition that causes the prostate to become enlarged. Nitric oxide activates an enzyme called guanylate cyclase, which increases levels of cyclic guanosine monophosphate (cGMP). The cGMP causes the smooth muscles in the penis to relax and the blood vessels to dilate, allowing more blood to flow into the erectile tissue, which leads to an erection.