HYALGAN is a sterile mixture that is made up mostly of a natural, highly purified sodium hyaluronate that comes from rooster combs. Hyaluronate is a natural chemical found in the body and it is present in a particularly high amount in joint tissues and in the fluid that fills the joints. The body's own hyaluronate acts like a lubricant and a shock absorber in the joint, and it is needed for the joint to work properly. In osteoarthritis, there may not be enough hyaluronate, and there may be a change in the quality of the hyaluronate in joint fluid and tissues.

HYALGAN is available in either 2 mL glass containers or 2 mL pre-filled syringes. HYALGAN is given in a shot directly into your knee.