When I stopped Prolia, I just stopped, so the chemo could do its job. I waited until my next Dexascan, which was 2 years later and that was not smart. If I had known I could pay for an interim Dexascan, I should have done that. Instead I waited the two recommended years between scans. I am still on Prolia, every 6 months, and take Collagen Peptides plus the recommended dose of Bone-Up capsules. My doctor was impressed with my results. From -4, to Osteopoenia and a few -1, -2 spots.