Did you know Vilitra 60 mg contain Vardenafil active ingredient? It's powerful medicine to treat impotence in men. Also Vilitra is used to oral therapy for cleaning out the erectile dysfunction and other blood flow related issues. 60 mg solide prepration as strength. Order USA brand Vardenafil tablet and manufacturer by centurion Laboratories Private Limited. Upon sexual stimulation, nitric oxide is produced and released which then activates the enzyme called guanylate cyclase to produce cyclic guanosine monophosphate (cGMP).