Levitra Sex Pills Raw Powder Pharma Vardenafil Chemical Materials Man Sexual Satisfaction Vardenafil (Levitra)​ Basic Info: CAS: 224785-91-5 Appearance: White crystal powder What is Vardenafil (Levitra) ? Levitra is a popular erectile dysfunction (ED) medication of the phosphodiesterase 5 inhibitor (PED5) class of medications. Bayer, GlaxoSmithKline and Schering-Plough developed the ED drug, but as of 2005 Bayer has retained full rights. Levitra …