@lee59 I was unable to take Forteo after several tries, but have been able to do Tymlos because I could start at a low dose and move up. The pen has 8 clicks and I started with two. Everyone is different. Forteo is a good medication so by all means try it but, just in case, know that Tymlos is an alternative that is available that also works via the parathyroid to grow bone.