Abaloparatide vs Teriparatide
Extensively Studied vs Extensively Studied
avoid Researched · 95% Do not use concurrently; both are PTH receptor agonists. Choose one or use sequentially.
Molecular Data
Abaloparatide Teriparatide
Weight 3,960 Da 4,118 Da
Half-life ~1.7 hours ~1 hour (subcutaneous); ~5 minutes (intravenous)
Chain 34 amino acids 34 amino acids
Type Synthetic PTHrP analog Recombinant PTH fragment
Key Benefits
Abaloparatide
01 FDA-approved for osteoporosis treatment
02 Actively builds new bone (anabolic mechanism)
03 Superior hip BMD gains vs teriparatide in trials
04 Reduces vertebral fracture risk significantly
05 Reduces nonvertebral fracture risk
06 Lower hypercalcemia risk than teriparatide
07 Works through selective PTH1R activation
08 Benefits seen within 6 months
Teriparatide
01 FDA-approved for osteoporosis treatment
02 Actively builds new bone (anabolic)
03 Increases spine bone density by 5-9%
04 Reduces vertebral fracture risk by 65%
05 Reduces nonvertebral fractures by 35%
06 Works differently than antiresorptive drugs
07 Benefits seen within 3 months
08 Creates 'anabolic window' for bone growth
Dosing Protocols
Abaloparatide
80 mcg / Once daily
Osteoporosis treatment 80 mcg Once daily
Teriparatide
20mcg daily (FDA-approved dose) / Once daily at same time each day
Osteoporosis treatment 20 mcg Once daily
Side Effects
Abaloparatide
Hypercalciuria (high calcium in urine)
Dizziness
Nausea
Headache
Palpitations
Fatigue
Upper abdominal pain
Vertigo
Injection site reactions
Teriparatide
Injection site reactions
Nausea
Headache
Leg cramps
Dizziness
Joint pain
Contraindications
Paget's disease of bone
Prior external beam or implant radiation therapy to skeleton
Bone metastases or history of skeletal malignancies
Metabolic bone diseases other than osteoporosis
Pre-existing hypercalcemia
Pregnancy or nursing
Cumulative use exceeding 2 years lifetime
Paget's disease of bone
Prior skeletal radiation therapy
History of skeletal malignancies
Metabolic bone diseases other than osteoporosis
Pre-existing hypercalcemia
Pregnancy
Research Evidence
Abaloparatide Teriparatide
Status Extensively Studied Extensively Studied
References 4 studies 4 studies
FDA Approved Yes Yes
This comparison is for educational and research purposes only. Consult a healthcare professional before use.