Fildena 150 Mg works by inhibiting the action of phosphodiesterase type 5 (PDE5) in the body. This enzyme is responsible for breaking down cyclic guanosine monophosphate (cGMP), which is a chemical that helps to relax the smooth muscles in the penis. By inhibiting PDE5, Fildena 150 Mg helps to increase the levels of cGMP in the body, which leads to increased blood flow to the penis and an erection. https://www.genericday.com/fildena-150-mg.html