Vilitra 60 mg is an oral drug that is used to deal with impotence or erectile disorder, whereby a man can no longer reap or keep an erection. An erection is accomplished when there is an engorgement of blood internal the penis. Upon sexual stimulation, nitric oxide is produced and launched which then turns on the enzyme referred to as guanylate cyclase to grant cyclic guanosine monophosphate (cGMP). CGMP is answerable for the leisure of blood vessels, permitting blood waft to the penis, primary to an erection.