How Does Teriparatide Work?
Teriparatide is a manufactured version of parathyroid hormone (PTH), a naturally occurring hormone that regulates calcium and phosphate in the body. PTH can have beneficial or harmful effects on bone, depending on the pattern of exposure. Having high PTH all the time (known medically as hyperparathyroidism) can lead to bone loss. However, when PTH is given once a day (such as with teriparatide), it seems to have the opposite effect, helping to build new bone.