PredniSONE and class action lawsuit

My daughter, 21yo, took prednisone off/on for 4 months, both oral and IV form, with the highest dose of 90mg over a two week period. The risk of bone death (Osteonecrosis, aka Avascular Necrosis) is not disclosed as a risk and 7,000 people a year get this from steroids! They gloss it over under the guise of "bone pain" or "bone fracture" near the osteoporosis risk so you think that by taking calcium and vit D supplements you're protected. What's really going on here is that the steroids cause the bone to die so if you have pain, PLEASE INSIST on an MRI because a regular x-ray will not show ON until it's in the advanced stages..and then you'll most certainly need joint replacement.
I'm not making light of the weight gain, or loss of hair or any of the myriad of other side effects that come with this drug, but when you're told that the joints in your body are dead...and that they'll eventually become brittle and break and cause so much pain it is often compared to bone cancer, then you'll really want to sue someone. But, I've tried that...it doesn't work. Because the drug is FDA approved...the manufacturer can't be held liable.

My daughter has ON in her right shoulder, both elbows, both wrists, both knees, and both ankles. She's considered "collateral damage" by the medical/legal communities because Prednisone is the "gold standard." This disease is a slow progressing disease which is often found as late as 10 years after stopping the steroid treatment. If you find it early enough, some surgical options exist to prevent the collapse of your bones, so if you have joint pain...PLEASE investigate with an MRI