Sorry, don't know about Forteo. However, what I have read about Boniva and similar drugs is that long-term studies show that they do no make a difference in broken bones. They think that what happens is that bone grows as a shell around the outside, so on X-rays it looks as if the bone has been strengthened, but in fact the center is still hollow. I have just the beginnings of osteoporosis and decided not to go with the drugs. I do take supplements of calcium citrate twice a day, vitamin D3, magnesium, and glucosamine chondroitin (plus multi- and a few others) to try to keep bones strong. Weight type exercise also strengthens bones.
I did find this message board with user comments about Forteo:
http://www.healthboards.com/boards/s...d.php?t=518576