Head to head
Teriparatide against Abaloparatide
The two bone-building peptides, one a fragment of parathyroid hormone and one an analogue of parathyroid hormone-related protein. Both are approved and both are daily injections; the trial that established abaloparatide was designed against placebo, with teriparatide as an open-label arm rather than a blinded comparator.
Column A
TeriparatideTeriparatide (parathyroid hormone 1-34)
An FDA-approved bone-building peptide, a fragment of parathyroid hormone used for severe osteoporosis.
Column B
AbaloparatideAbaloparatide (PTHrP analogue)
An FDA-approved bone-building peptide analogue of parathyroid hormone-related protein for postmenopausal osteoporosis.
Side by side, on the facts we can check
| Attribute | Teriparatide | Abaloparatide |
|---|---|---|
| Category | Hormone | Hormone |
| FDA status | FDA-approved (Forteo) for osteoporosis | FDA-approved (Tymlos) for osteoporosis |
| Half-life | ~1 hour | ~1 hour |
| Molecular weight | 4,117.8 Da | 3,961 Da |
| Mechanism | Intermittent activation of PTH receptors stimulates bone-forming osteoblasts, increasing bone density and strength. | Selectively activates the PTH1 receptor to favor bone formation over resorption, increasing bone density. |
| Human studies cited | 2 | 2 |
| Legal status, US | FDA-approved, prescription only | FDA-approved, prescription only |
Frequently asked questions
What is the difference between Teriparatide and Abaloparatide?
Teriparatide: An FDA-approved bone-building peptide, a fragment of parathyroid hormone used for severe osteoporosis. Abaloparatide: An FDA-approved bone-building peptide analogue of parathyroid hormone-related protein for postmenopausal osteoporosis.
Which has stronger research evidence, Teriparatide or Abaloparatide?
This database does not grade compounds. It counts what was run in people: 2 of the 2 studies cited on the Teriparatide profile were human work, against 2 of 2 for Abaloparatide. Those counts are of our own citation lists and understate any larger literature, and neither is a recommendation.
Are Teriparatide and Abaloparatide FDA-approved?
Teriparatide: FDA-approved (Forteo) for osteoporosis. Abaloparatide: FDA-approved (Tymlos) for osteoporosis.
Reviewed Sep 2026. This page sets two published records side by side. It is educational, it is not medical advice, and it contains no dosing protocols or recommendations for personal use.