Hi mj20, I've been on Forteo for just over a year. Side effects for me are minimal. There was a slight bit of pain at times during the first 10 days or so and then nothing after that. I can't even say it was a side effect, as it could have been coincidence (I have Primary Imundeodeficiency and began antibody infusions 6 days after I began Forteo. Some of it could be related to that.) I would choose Forteo again.