Davunetide vs hGHRH(1-44)
Head-to-head comparison of Davunetide (Activity-Dependent Neuroprotective Protein fragment NAP (NAPVSIPQ)) and hGHRH(1-44) (Human growth hormone-releasing hormone (1-44) amide) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Davunetide | hGHRH(1-44) |
|---|---|---|
| Category | Cognitive Enhancement | Growth Hormone |
| Full Name | Activity-Dependent Neuroprotective Protein fragment NAP (NAPVSIPQ) | Human growth hormone-releasing hormone (1-44) amide |
| Molecular Weight | 796.9 Da | N/A |
| Half-Life | short; minutes to low hours | 5-15 minutes |
| Amino Acids | 8 | 44 |
| Typical Dose | 1-10 mg/day research range | 0.1-1 mcg/kg |
| Route | Intranasal | Subcutaneous/IV |
| Purity | ≥98% | ≥98% |
| Studies Count | 40 | 120 |
| Research Status | Clinical/Pre-clinical | Clinical Research |
Davunetide Benefits
- ✓neuroprotection
- ✓microtubule support
- ✓attention support
- ✓memory preservation
hGHRH(1-44) Benefits
- ✓physiologic GH pulse support
- ✓IGF-1 pathway stimulation
- ✓pituitary receptor mapping
- ✓endocrine research tool
Davunetide Dosing
intranasal research dosing|1-10 mg per dose in trials/preclinical work|once or twice daily
hGHRH(1-44) Dosing
0.1-1 mcg/kg SC or IV bolus for stimulation studies|single-dose endocrine challenge with timed GH sampling|pulsatile administration in clamp/infusion experiments
Davunetide Side Effects
- ⚠nasal irritation
- ⚠headache
- ⚠limited efficacy in late-stage trials
hGHRH(1-44) Side Effects
- ⚠flushing
- ⚠headache
- ⚠transient nausea
Research Overview
Davunetide
Preclinical work showed davunetide can protect neurons, preserve synaptic structure, and improve performance in memory tasks. Human trials largely focused on neurodegenerative disease outcomes rather than stand-alone nootropic use, but the literature supports CNS activity.
hGHRH(1-44)
Human GHRH(1-44) amide has been used extensively to characterize hypothalamic control of pituitary somatotrophs and the downstream GH/IGF-1 axis. It remains a standard comparator in studies of GHRH agonism, secretion dynamics, and receptor pharmacology.
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