@sodita Your doctor said that? That sounds like poor advice. Normally, if you don't follow up Forteo (or Tymlos) with a biphosphonate, you will lose the gains you made. Calcium and vitamin D aren't going to work.

@sodita Hope mine turns out the same! Thanks for sharing!

@sodita Like @njx58 I am also surprised that your doctor is not putting you on another drug to lock in your gains from Forteo (generic name Teriparatide).

Below are some references. In your situation I would print out some articles and take them to your doctor to discuss. My doctors have been open to such talks.

Cleveland Clinic:
https://health.clevelandclinic.org/osteoporosis-medications
Excerpt: " After finishing your course [of teriparatide (Forteo®) ], you’ll need to start on an anti-resorptive medication, like bisphosphonate or denosumab. “If you don’t do anything further, you’ll lose the ground you gained,” Dr. Mileti points out."

Bone Health and Osteoporosis Foundation (BHOF):
https://www.bonehealthandosteoporosis.org/patients/treatment/medicationadherence/teriparatide-parathyroid-hormone-pth-1-34-forteo/
Excerpt: "At the end of [Forteo treatment], bone loss can be rapid. In order to retain the benefits of treatment with teriparatide, most experts recommend that patients start an antiresorptive medicine right after finishing the teriparatide therapy."