The active ingredient in Apcalis Oral Jelly is tadalafil, which is a phosphodiesterase type 5 (PDE5) inhibitor. Tadalafil works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain an erection. It does this by inhibiting the action of the PDE5 enzyme, which is responsible for the degradation of cyclic guanosine monophosphate (cGMP) in the corpus cavernosum of the penis. By inhibiting PDE5, tadalafil helps to increase the levels of cGMP, leading to smooth muscle relaxation and increased blood flow to the penis, facilitating erections.
https://www.genericday.com/apcalis-oral-jelly.html