I am aware of injecting arthritic joints with HA ( a series of 3 injections) and the success rate has really not been any better than injection of steroids. I am not at all aware of any oral formulations of HA and neither was an orthopedic surgeon to whom I refer most of my ortho patients. I did a search on mdconsult.com and aafp.org and came up with nothing. Anyone have a name of the oral HA formulation?? I would be very curious to see how it works. Interesting........ Stay healthy folks. Dr Dave