Cerebrolysin vs N-Acetyl Semax Amidate
A side-by-side research comparison of Cerebrolysin and N-Acetyl Semax Amidate across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Cerebrolysin | N-Acetyl Semax Amidate |
|---|---|---|
| Full name | Cerebrolysin (Brain-Derived Peptide Preparation) | N-Acetyl Semax Amidate (NA Semax) |
| Category | Cognitive & Nootropic | Cognitive & Nootropic |
| Status | Investigational | Research compound |
| Mechanism | Contains fragments mimicking NGF, BDNF, GDNF, CNTF. Enhances synaptic plasticity, promotes neuronal sprouting, reduces amyloid-beta, and stabilizes calcium homeostasis. | A heptapeptide analog of ACTH(4-10) that increases BDNF and NGF expression, modulates the dopaminergic and serotonergic systems, and provides neuroprotective and pro-focus effects. The acetyl/amidate modifications extend its half-life versus plain Semax. |
| Molecular weight | <10,000 Da (peptide fraction) | ~900 Da |
| Half-life | 4-6 hours | Longer than base Semax (modifications resist peptidases) |
| Bioavailability | High (IM/IV) | Intranasal (primary); subcutaneous also used |
| Typical dose | 5-30 mL | ~300-600 mcg per day |
| Frequency | Daily for 10-20 days | 1-2x daily |
| Route | Intramuscular or IV | Intranasal spray/drops |
Cerebrolysin reported benefits
- Neurotrophic support
- Stroke recovery
- Memory improvement
- Neuroprotection
- Synaptic plasticity
- Approved in 40+ countries
N-Acetyl Semax Amidate reported benefits
- Improved focus and mental clarity
- Raises BDNF/NGF (neurotrophic)
- Neuroprotective
- Longer-acting than base Semax
Related comparisons
Research and educational reference only. Not medical advice.