Somatropin vs Teriparatide
Overview
Somatropin is primarily a hormonal peptide, while Teriparatide is used for bone & joint.
This page compares Somatropin and Teriparatide across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.
Side-by-side comparison
| Somatropin | Teriparatide | |
|---|---|---|
| Category | Hormonal | Bone & Joint |
| Regulatory status (US) | FDA approved | FDA approved |
| Typical dosage | 0.16-0.24 mg/kg/week (pediatric growth hormone deficiency); about 0.2 mg/day (adult growth hormone deficiency) | 20 mcg |
| Frequency | daily subcutaneous injection | daily |
| Reported benefits | In labeled use, somatropin increases linear growth in children with growth failure from growth hormone deficiency, Turner syndrome, Prader-Willi syndrome, small size for gestational age and idiopathic short stature. In adults with diagnosed growth hormone deficiency, professional guidelines describe benefits in body composition, exercise capacity, skeletal integrity and quality-of-life measures, with the largest benefit in the most severely deficient patients. | Bone density increase, osteoporosis treatment, fracture prevention |
| Reported side effects | Fluid retention, edema, arthralgia and carpal tunnel syndrome are common in adults. Labeled warnings include glucose intolerance and new-onset diabetes, intracranial hypertension, slipped capital femoral epiphysis and scoliosis progression in children, hypothyroidism, hypoadrenalism, pancreatitis and hypersensitivity reactions. | Dizziness, leg cramps, nausea |
Key differences
Primary use. Somatropin is categorised under Hormonal, while Teriparatide falls under Bone & Joint. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.
Regulatory status. Somatropin: FDA-approved. Teriparatide: FDA-approved.
Dosing. Somatropin is typically dosed at 0.16-0.24 mg/kg/week (pediatric growth hormone deficiency); about 0.2 mg/day (adult growth hormone deficiency) (daily subcutaneous injection). Teriparatide is typically dosed at 20 mcg (daily).
Can you stack them?
Some protocols combine peptides, but stacking Somatropin and Teriparatide has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.
Frequently asked questions
- What is the difference between Somatropin and Teriparatide?
- Somatropin is primarily a hormonal peptide, while Teriparatide is used for bone & joint. Somatropin is FDA-approved for one or more indications, whereas Teriparatide is FDA-approved for one or more indications.
- What is Somatropin used for?
- Recombinant human growth hormone, FDA-approved for growth failure in children and growth hormone deficiency in adults.
- What is Teriparatide used for?
- FDA-approved bone builder.
- Can you take Somatropin and Teriparatide together?
- Some users combine peptides within a single protocol, but stacking Somatropin and Teriparatide has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
- Is Somatropin or Teriparatide FDA-approved?
- Somatropin is FDA-approved for one or more indications. Teriparatide is FDA-approved for one or more indications.
Read the full articles
- Somatropin — full monograph: mechanism, research, dosing & references
- Teriparatide — full monograph: mechanism, research, dosing & references