Krystexxa is a prescription medicine approved by the FDA for the treatment of gout. It is given through a two hour intravenous infusion that will be administered every two weeks. Krystexxa works to reduce the symptoms of gout that are not being controlled by other treatments. Gout is caused by too much uric acid collecting in a patient’s joints, kidneys, and other organs, leading to inflammation and pain. Krystexxa controls symptoms by lowering blood levels of uric acid.