Somatropin vs hGHRH(1-37)OH
Head-to-head comparison of Somatropin (Recombinant human growth hormone (rhGH)) and hGHRH(1-37)OH (Human growth hormone-releasing factor (1-37) hydroxyl) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Somatropin | hGHRH(1-37)OH |
|---|---|---|
| Category | Growth Hormone | Growth Hormone |
| Full Name | Recombinant human growth hormone (rhGH) | Human growth hormone-releasing factor (1-37) hydroxyl |
| Molecular Weight | 22125 Da | N/A |
| Half-Life | 2-4 hours | 5-20 minutes |
| Amino Acids | 191 | 37 |
| Typical Dose | 0.004-0.03 mg/kg/day | 1-2 mcg/kg |
| Route | Subcutaneous | Subcutaneous/IV |
| Purity | ≥98% | ≥98% |
| Studies Count | 2000 | 60 |
| Research Status | Clinical/Approved | Clinical Research |
Somatropin Benefits
- ✓linear growth support
- ✓lean mass preservation
- ✓bone mineral accrual
- ✓IGF-1 elevation
hGHRH(1-37)OH Benefits
- ✓GH release studies
- ✓minimal-sequence mapping
- ✓receptor pharmacology
- ✓peptide stability research
Somatropin Dosing
daily subcutaneous dosing|titrate to IGF-1 and response|weight-based replacement protocols
hGHRH(1-37)OH Dosing
1-2 mcg/kg SC or IV bolus|acute stimulation with serial GH assays|short-course research administration with biomarker monitoring
Somatropin Side Effects
- ⚠edema
- ⚠arthralgia
- ⚠insulin resistance
hGHRH(1-37)OH Side Effects
- ⚠flushing
- ⚠headache
- ⚠transient fatigue
Research Overview
Somatropin
Somatropin is the best-studied growth hormone peptide, with decades of clinical use in pediatric and adult GH deficiency. Trials consistently show increases in IGF-1 and growth velocity, with adverse effects mainly reflecting excessive GH exposure.
hGHRH(1-37)OH
Human GHRF(1-37)OH has appeared in studies examining how loss of C-terminal residues affects biological activity at the GHRH receptor. It is often used alongside other fragments to define structure-activity relationships within the GHRH family.
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