Valsartan is a medication that is used to treat high blood pressure and heart failure. However, there are other names that are often used to refer to valsartan. These include its brand names Diovan and Valzaar, as well as its generic names Valtan, Valpresan, Prefito, and Tolura. These names all refer to the same medication, but they may be used for different purposes depending on where you are in the world. However, regardless of the name, valsartan works by relaxing blood vessels and allowing the heart to pump more easily, which ultimately leads to better control of blood pressure.