Generic erix 100mg targets the PDE-5 hormones as soon as it starts working.  The way generic sildenafil functions is by totally blocking PDE-5 hormones.

The production of cGMP can create nitric oxide, which hardens the erection by vasodilating the arteries.  In just a few minutes, this significantly raises the volume of blood flowing through the tissues of the penis.

In order to treat pulmonary hypertension, erix widens the lungs' blood arteries, allowing blood to flow more easily.