Forteo was great for me. Built up bone mass that I didn’t have. Even the reps for the rx were impressed with my results and used them as an example. I would still be on if I could. I’ve never been told of the 2 yr limit on Prolia. I will have my 2nd shot for 2016 in Dec. and I have not been told that. I will have to ask my doctor at Mayo. Forteo was covered by my insurance.