Buy Levitra Online valso known by its generic name vardenafil, is a medication commonly used to treat erectile dysfunction (ED) in men. It belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. Levitra works by increasing blood flow to the penis, which helps achieve and maintain an erection during sexual stimulation. It does this by inhibiting the enzyme PDE5, which can restrict blood flow.