
Hyalgan contains a substance called hyaluronate, that is injected into the knee to relieve pain and help relieve joint pain associated with damage to the protective covering of the bones, the cartilage. Hyaluronate is naturally occurring fluid found in the knee that lubricates and cushions the joint. Hyalgan is an option for treatment within people who do not get enough pain relief from simple painkiller or from physical therapy or from exercise. Injections of Hyalgan can be used before or together with other prescribed pain relief medication.