It is a daily injection. Tymlos (unlike Forteo) has clicks on the injection pen. Full dose is 8 clicks. My initial attempt to take it landed me in the ER. I met with docs about Tymlos versus Evenity given my sensitivity, and decided, with my doc, to try Tymlos and ramp up. I started with two clicks, and stayed on each level of clicks for a week or two- more time as I moved up. I have been on 7 clicks consistently now, for a few months. My doc is thrilled, even at 6 clicks. I still have significant side effects at full dose of 8 clicks, strange as that sounds when 7 is fine and the difference is so small. My body must have some kind of threshold for tolerability!