Hi @Chris
My bone density plummeted in the first year of taking Femara (I had 2 years on Tamoxifen before having ovaries removed and changing to Femara). After the first year on Femara my t-score at the spine was -3.2! My breast surgeon recommended Prolia but I had reservations. I asked lots of questions and still had concerns.
I stumbled across the Bone Clinic. They address all the issues that contribute to bone health. Their dietician examines your diet to ensure that you are getting enough calcium and all the other vitamins and minerals that are needed for healthy bones. I also saw their exercise physiologist who checked my functional movement and made sure it was safe for me to commence their weightlifting program. There has been a lot of research into this program through the Griffith Uni.
After 12 months on their program my t-score had improved to -2.1 at the spine. No Prolia or any bone medication and still taking Femara. I am just about to have my next bone density scan. I am hoping that it will show another positive result.
@Romla is right, even the makers of Prolia advise that your risk of fracture actually rises if you stop Prolia. At only 50 when diagnosed with osteoporosis I did not want to start on Prolia unless absolutely necessary. For me a supervised weightlifting program and some minor adjustments to my diet have reversed my diagnosis for now. Ask lots of questions until you are comfortable with your choices.