Viltra 60mg is the highest dose of this medication and is recommended for the treatment of severe male s*xual dysfunction problems such as erectile dysfunction (ED). Its main content is the monohydrochloride salt (HCl) of vardenafil, which belongs to the category of drugs that inhibit the enzyme phosphodiesterase-5 (PDE-5). Its mode of action is the same as other PDE-5 inhibitors, it helps to obtain and maintain a firm erection during s*xual intercourse by increasing blood flow to the muscles of the p*nis.