Growth hormone axis
Somatropin
Also called rhGH, Genotropin, Norditropin
per administration
A human trial worked out how much to take and how often, so a dosing schedule is shown.
Licensed as a medicine in the US and EU.
Quick start
Somatropin at a glance — the figures, plus how it's commonly run. Reference only, not medical advice.
- Typical dose
- 0.2–0.4 mg per administration
- How often
- Every day
- Where
- Subcutaneous — abdomen, thigh, or upper arm Sites and rotation
- Time to steady level
- ~15 hours — about five half-lives
- Storage
- Dry vial kept cold and dark; a mixed vial in the fridge at 2–8 °C. Details
A research and community reference, not medical advice. Figures are descriptive, vary between sources, and are not a recommendation for use.
Work out your draw
These numbers are a starting point — change any of them.
Vial label
Copy this into your label printer.
Published research contexts for Somatropin describe 0.2–0.4 mg per administration. Descriptive only, not a recommendation.
About 2–4 hours after subcutaneous injection; absorption-limited.
A recombinant 191-amino-acid growth hormone; adult replacement is individualized and titrated to IGF-1 rather than run as a fixed escalation, so a single maintenance row is shown rather than a step-up table.
Dosing schedule
How Somatropin is commonly stepped up, for reference only.
These are commonly-discussed research protocols shared for educational reference. This is not medical advice and is not a substitute for guidance from a qualified professional.
| Phase | Amount | Frequency | Route |
|---|---|---|---|
| MaintenanceAdult replacement is individualized and titrated to IGF-1; a recombinant 191-amino-acid protein hormone, not a peptide fragment. | 0.2–0.4 mg | Once daily | SubQ |
Modelled level — every day
1× is the peak after a single dose.
- Steady-state peak
- 1.00× single dose
- Time to steady state
- 15hours
- Administrations
- 7/ week
Read off the modelled curve, not an even-interval formula
About five half-lives
Where these numbers come from
- Somatropin (recombinant human growth hormone) product literatureA licensed 191-amino-acid recombinant growth hormone; adult replacement is individualized and titrated to IGF-1.