Sildenafil is a drug from the group of so-called phosphodiesterase inhibitors, also called PDE-5 inhibitors. They are the most commonly used drugs for erectile dysfunction. The committee's decision not only affects the well-known potency pill Viagra, but also so-called copycat preparations with the active ingredient sildenafil, continue to read on www.Gulickhhc.com/erectile-dysfunction/nizagara.htm.