Davunetide vs PACAP-38
Head-to-head comparison of Davunetide (Activity-Dependent Neuroprotective Protein fragment NAP (NAPVSIPQ)) and PACAP-38 (Pituitary Adenylate Cyclase-Activating Polypeptide-38 (human PACAP-38)) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Davunetide | PACAP-38 |
|---|---|---|
| Category | Cognitive Enhancement | Cognitive Enhancement |
| Full Name | Activity-Dependent Neuroprotective Protein fragment NAP (NAPVSIPQ) | Pituitary Adenylate Cyclase-Activating Polypeptide-38 (human PACAP-38) |
| Molecular Weight | 796.9 Da | 4534 Da |
| Half-Life | short; minutes to low hours | minutes |
| Amino Acids | 8 | 38 aa |
| Typical Dose | 1-10 mg/day research range | 10-100 µg preclinical range |
| Route | Intranasal | Intranasal |
| Purity | ≥98% | ≥98% |
| Studies Count | 40 | 650 |
| Research Status | Clinical/Pre-clinical | Pre-clinical |
Davunetide Benefits
- ✓neuroprotection
- ✓microtubule support
- ✓attention support
- ✓memory preservation
PACAP-38 Benefits
- ✓synaptic plasticity
- ✓BDNF upregulation
- ✓neuroprotection
- ✓memory consolidation
Davunetide Dosing
intranasal research dosing|1-10 mg per dose in trials/preclinical work|once or twice daily
PACAP-38 Dosing
0.1-1 nmol ICV in rodents|10-100 µg intranasal in preclinical studies|single-dose or short repeated protocols
Davunetide Side Effects
- ⚠nasal irritation
- ⚠headache
- ⚠limited efficacy in late-stage trials
PACAP-38 Side Effects
- ⚠headache-like effects
- ⚠flushing
- ⚠hypotension
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.
PACAP-38
PACAP-38 is one of the most studied endogenous neuropeptides for protecting neurons from ischemic and excitotoxic damage. Preclinical literature also links it to hippocampal plasticity and learning-related signaling, including increased BDNF expression.
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