My bone density was horrible. -4.7 in my spine and the insurance initially denied my prescription. They wanted me to start on Fosamax which would have done nothing for me. My doctor appealed my insurance and advised I had to be on a bone building medication. They finally put it thru. And I’m glad they did. I’ve been on Tymlos for almost 2 years and my spine numbers have improved by 11%. Good luck!