Nourianz is only available as a brand-name drug. It doesn’t come in a generic version. A generic drug is an exact copy of the active ingredient in a brand-name medication. Generics tend to cost ...

As with other drugs, Nourianz (istradefylline) can cause side effects, such as dizziness and insomnia. If you are not able to tolerate the side effects of Nourianz, talk with your doctor or ...