@255anny, you are in a tough position!!! 2 separate sequences to think of. Evenity to a relay then a relay drug back to evenity. There might not be studies available with good number of subjects to show powerful statistical significance since evenity is relatively new. If it is just evenity--> prolia or reclast to be considered, then it'd be a lot easier. Obviously your endo has another round of evenity in mind for you after the relay drug. Hence not only you need to pick a relay drug that you are comfortable with, you need also think about which sequence (prolia -->evenity, or reclast --> evenity) will turn out better, on top of the worrying about potential prolia rebound effect. Toooo much! There are couple publications I read re evenity after 1-2 shots of prolia. It seems bmd increases were dampened but there were increase. There was a paper by Japanese researchers for evenity after reclast but results weren't clearly tabulated since there were other bps involved.