I did 24 months of Forteo after 13 compression fractures in my spine. I am very grateful for this medication and well worth the initial nausea and tummy bloating. Tried Prolia as follow up, but had jaw and bladder problems so did not continue after initial dose. Went on Evista (Raloxafine) for maintenance for 4 years with no side effects and no breaks. Spine density cannot be done due to previous fractures, but hip was -3.0. It is now -3.5 and recommended to go back on Forteo. After some debate, we decided on Evenity. However, I live in Powell River, BC and seems it requires Parmacare Special Authority first, for which there is at least a two month back log. I have had back spasms recently, which was a pre warning to breaking last time, and my endocrinologist seems unavailable to discuss this with (I think I have annoyed her with my research and questions). So I have decided to put myself back on Forteo for 6 months until Evenity is cleared through Parmacare . (I still have approved prescription for Forteo). Cancer risk vs guarantee that I will break again if I don't do something. Sure wish I had better medical support on this, but seems no one really wants to take on a lost cause.