Cerebrolysin vs Substance P
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
Cerebrolysin
Cerebrolysin is a mixture of low-molecular-weight neuropeptides and free amino acids derived from purified pig brain proteins. It is approved in many countries for stroke, traumatic brain injury, and dementia.
Full details →Substance P
Substance P is an 11-amino acid neuropeptide involved in pain transmission, inflammation, and various neurological processes. While not used therapeutically itself, understanding it is crucial for pain research.
Full details →Side-by-Side Comparison
| Aspect | Cerebrolysin | Substance P |
|---|---|---|
| Dose Range | 2150 mg–4300 mg | 35 mcg–350 mcg |
| Frequency | 1x daily | 1x daily |
| Cycle Length | 1–2 weeks | 1 weeks |
| Route | intramuscular | subcutaneous |
| Mechanism | Contains multiple neurotrophic factors that promote neuroplasticity, reduce neuronal apoptosis, and support synaptic function. Has both neurotrophic and neuroprotective properties. | Binds primarily to NK1 receptors to transmit pain signals from peripheral nerves to the CNS. Also promotes inflammation, causes vasodilation, and stimulates immune cells. |
| Typical Dosage | Clinical dosing: 10-30ml IV daily for acute conditions. Research use: 5-10ml IM daily for cognitive enhancement. Treatment courses typically last 10-20 days. | Not used as a therapeutic agent. NK1 receptor antagonists (blocking Substance P) are used clinically for chemotherapy-induced nausea. |
| Administration | Administered via intramuscular or intravenous injection. IV administration is typically used in clinical settings. IM can be used for research purposes. | Research compound only. Therapeutic applications focus on blocking rather than administering Substance P. |
| Side Effects | Generally well-tolerated. May cause dizziness, headache, sweating, or injection site reactions. Rare cases of agitation or confusion. | Administration would cause pain, inflammation, and neurogenic responses. Not given therapeutically. |
| Best For |
What They Have in Common
Cerebrolysin, Substance P are both commonly used for:
Key Differences
Unique to Cerebrolysin:
Which Has Stronger Evidence?
- Cognitive Performance: Cerebrolysin has stronger research support.
| Goal | Cerebrolysin | Substance P |
|---|---|---|
| Cognitive Performance | high | low |
Key Studies
Cerebrolysin
- Cerebrolysin Ameliorates Age-Induced Dendritic Spine Degeneration and Memory Decline in C57BL6 Mice.
Neurochemical research, 2025
- Is Cerebrolysin Useful in Psychiatry Disorders?
Biomedicines, 2025
- Cerebrolysin ameliorates ketamine-mediated anxiety and cognitive impairments via modulation of mitochondrial function and CREB/PGC-1α pathway.
Molecular brain, 2025
Substance P
- Revisiting the role of Substance P and CGRPα.
eLife, 2025
- Biochemistry, Substance P.
2023
- Substance P-Friend or Foe.
Journal of clinical medicine, 2022
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