Answer
It acts like the active part of human parathyroid hormone and stimulates cells that form new bone.
Sources for this answer
- Forsteo 20 micrograms/80 microlitres solution for injection in pre-filled pen — Current selected SmPCemc · Summary of Product Characteristics
- NHSNHS · NHS medicine guidance
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.