[a href="https://www.medixpills.com/fildena-150-mg/"]Fildena 150mg[url] tablet functions by blocking the enzyme PDE5 that regulates the flow of blood through the penis. By blocking PDE5 this allows for higher levels of cyclic Guanosine monophosphate (cGMP) which leads to the relaxation of the smooth muscle in the penile region. This relaxes blood flow, which helps keep and maintain an erection after sexual stimulation.