Vilitra 10 mg is a medica tion commonly used to treat erec tile dysfunc tion (ED) in men. It contains the active in gredient vard enafil, which belongs to a class of drugs called ph osphodiesterase type 5 (PDE5) inh ibitors. Vil itra works by increasing blood flow to the p enis, which helps men achieve and maintain a firm er ection when se xually aroused.