Sildenafil citrate, the active component of Fildena vs viagra, is a member of the group of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Knowing the physiological processes involved in getting and keeping an erection is necessary to comprehend how Fildena functions.
Nitric oxide (NO) is released by the nerves in the penis' erectile tissue when a man becomes sexually aroused. Cyclic guanosine monophosphate (cGMP) levels rise as a result of nitric oxide stimulating the guanylate cyclase enzyme. of order to relax the smooth muscles of the corpus cavernosum, the spongy tissue that fills with blood during an erection, and the penile arteries, cyclic guanosine monophosphate (cGMP) is essential. Increased blood flow into the penis is made possible by the dilatation of blood vessels caused by the relaxation of these muscles.