I am 63 years old with a kidney transplant. I have 1-1/2 year of my transplant operation. I have a very bad osteoporosis, and my doctor recommend Tymlos but I could not tolerate this medicine . Too much side effect. Now the doctor recommend Forteo. I have using this med in injection for 1-1/2 week . I can tolerate this med better . I have only a little pain in my back for seconds and goes away. I am glad I want to rebuild my bones again.