> Viagras Enhance Power to Argentina (224785-90-4) Vardenafil
Vardenafil's indications and contra-indications are the same as with other PDE5 inhibitors; It is closely related in function to citrate and tadalafil. The difference between the vardenafil molecule and citrate is a nitrogen atom's position and the change of sildenafil's piperazine ring methyl group to an ethyl group. Tadalafil is structurally different from both vardenafil. Vardenafil's relatively short effective time is comparable to but somewhat longer than sildenafil's.
Beyond its indications for erectile dysfunction, vardenafil may be effective in the treatment of premature ejaculation, where it may significantly increase the time from penetration to ejaculation