I am afraid of exactly that. Prolia is the one med my doctor doesn't want me on but he is also leery of Reclast. I am wondering about following Tymlos with Evenity. Forteo can be taken for more than two years so also wondering if Tymlos will be extended. My doc also mentioned doing 1/4 dose Reclast after Tymlos with meds and a lot of water and slow infusion, and then monitor to see when and for how long I can go between infusions.