Ironwood is discontinuing U.S. commercialization of lesinurad (DUZALLO and ZURAMPIC), effective February 1, 2019. This is a business decision and is not related to any efficacy, safety or clinical concerns with lesinurad. If you have been taking either DUZALLO or ZURAMPIC to treat your condition, please consult with your healthcare professional before making any decisions to stop treatment. Please work with your healthcare professional for an alternate treatment for your condition.

The DUZALLO and ZURAMPIC Patient Savings Program has been discontinued, effective December 31, 2018.

We regret any inconvenience this may cause. For any questions, please contact Ironwood via the Contact Us Webform ( or call the Ironwood Contact Center at 1-844-374-4793.