Cerebrolysin
Cerebrolysin is a proprietary preparation of low molecular weight peptides and free amino acids enzymatically derived from purified porcine brain protein. Developed decades ago, it has been used in some countries mainly in stroke, traumatic brain injury, and dementia care, though it lacks FDA approval and is not licensed for use in the United States. Its formulation is intended to mimic the combined activity of multiple endogenous neurotrophic factors rather than a single defined peptide sequence. A substantial body of published clinical research exists, primarily from outside North America, with mixed conclusions regarding effect size and methodological quality. It is typically administered by intramuscular or intravenous injection in clinical settings.
Reported benefits
- Studied for supporting cognitive recovery after ischemic stroke
- Explored as an adjunct in traumatic brain injury rehabilitation research
- Investigated for symptomatic support in vascular and Alzheimer's-type dementia
- Proposed neurotrophic and neuroprotective properties in preclinical models
- Reported anti-inflammatory activity in some neural tissue studies
How it works
Cerebrolysin is proposed to exert multimodal effects on the central nervous system by mimicking the actions of neurotrophic factors such as BDNF, nerve growth factor, and glial cell line-derived neurotrophic factor, supporting neuronal survival and synaptic plasticity. It has also been studied for anti-inflammatory and antioxidant activity within neural tissue, along with potential modulation of amyloid-related processes in preclinical models. Because it is a mixture rather than a single defined compound, isolating one mechanism of action is not straightforward.
Dosing ranges
| Tier | Dose | Frequency |
|---|---|---|
| Low | 500 mg | several times weekly |
| Moderate | 1,075 mg | daily on treatment days |
| High | 2,150 mg | daily on treatment days |
Estimate your dose
Dose estimator
Educational estimate for Cerebrolysin, scaled to body size. Not medical advice.
Read before using
This tool produces a rough, educational estimate by scaling commonly-published research ranges to lean body mass. It is not a prescription, medical advice, or a substitute for a licensed clinician. Most peptides use fixed dosing, not weight-based dosing. Individual needs vary. You are solely responsible for how you use this information.
Mixing & syringe units
Target dose follows the estimate above. Change it there, or edit it directly below.
Reconstitution calculator
How much water to add and how many insulin-syringe units to draw for Cerebrolysin. Educational only.
Draw to this mark
21,500units
= 215 mL for a 1,075 mg dose
Concentration
5 mg/mL
Doses per vial
0
This dose needs 21,500 units, more than a 100-unit syringe holds. Add more water, split the dose, or use a larger syringe.
A U-100 syringe reads 100 units per mL. This is a reconstitution math helper only, not a prescription or dosing advice. Verify every calculation and consult a qualified healthcare provider.
Possible side effects
Stacking notes
Sometimes discussed alongside other neurotrophic-focused peptides in research contexts; concurrent use with other injectable compounds has not been formally studied.
Common protocols
Common questions
What is Cerebrolysin used for?
Cerebrolysin is a proprietary preparation of low molecular weight peptides and free amino acids enzymatically derived from purified porcine brain protein. Developed decades ago, it has been used in some countries mainly in stroke, traumatic brain injury, and dementia care, though it lacks FDA approval and is not licensed for use in the United States. Its formulation is intended to mimic the combined activity of multiple endogenous neurotrophic factors rather than a single defined peptide sequence. A substantial body of published clinical research exists, primarily from outside North America, with mixed conclusions regarding effect size and methodological quality. It is typically administered by intramuscular or intravenous injection in clinical settings. Reported benefits include studied for supporting cognitive recovery after ischemic stroke, explored as an adjunct in traumatic brain injury rehabilitation research, investigated for symptomatic support in vascular and alzheimer's-type dementia.
What is a typical Cerebrolysin dose?
Reported ranges run 500-2,150 mg. A low protocol is 500 mg several times weekly, and a high protocol is 2,150 mg daily on treatment days. This is reference information, not a dosing recommendation.
What is the half life of Cerebrolysin?
As a mixture of small peptides and amino acids, Cerebrolysin does not have a single defined half-life; its components are generally metabolized within a few hours.. That is what sets the dosing frequency, and it is why the timing guidance is morning.
How is Cerebrolysin administered?
Intramuscular: into muscle. Typically given by intramuscular or intravenous injection in clinical settings; this profile reflects intramuscular administration.
How long is a Cerebrolysin cycle?
10-20 consecutive days on, followed by 8-12 weeks or longer off. Clinical protocols described in the literature typically use defined treatment courses rather than continuous daily administration; there is no standardized research-grade cycling schedule outside supervised clinical use.
What are the side effects of Cerebrolysin?
Reported side effects include injection site pain or irritation, dizziness or agitation reported in some clinical studies, rare hypersensitivity reactions, gastrointestinal discomfort in some users, limited safety data outside supervised clinical settings. Evidence level for this compound is well studied.
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Educational use only, not medical advice. This profile is provided for research and educational purposes. Cerebrolysin may be a research compound or a prescription medication; nothing here is intended to diagnose, treat, cure, or prevent any disease. Dosing figures reflect commonly-published research ranges, not a prescription. Consult a qualified healthcare provider before making any health decision. Read the full disclaimer →