Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Cerebrolysin | DSIP (Delta Sleep-Inducing Peptide) | |
|---|---|---|
| Category | Peptides | Peptides |
| Standard Dose | Research indicates 10-30 mL daily via intravenous infusion for neurological indications. 5-10 mL for cognitive optimization. | Research indicates 100-300 mcg administered before bedtime via subcutaneous injection or intranasal. |
| Timing | Morning administration preferred for cognitive effects. IV infusion over 15-20 minutes. | 30-60 minutes before desired sleep onset. Evening only. |
| Cycle Duration | 10-20 day intensive cycles repeated every 3-6 months. Some protocols use ongoing 3x weekly maintenance. | 2-4 week cycles with equal rest periods to prevent tolerance. |
| Evidence Level | moderate_human | animal_plus_anecdotal |
Cerebrolysin is a porcine brain-derived peptide preparation containing a standardized mixture of low-molecular-weight neuropeptides (<10 kDa) and free amino acids obtained through enzymatic proteolysis. It exerts multimodal neurotrophic effects by simultaneously upregulating VEGF, BDNF, IGF-1, and NGF while downregulating TNF-alpha. Cerebrolysin increases furin protease concentration, which promotes pro-NGF to mature NGF conversion. It activates TrkB receptor signaling (BDNF/TrkB/CREB pathway), inhibits neuronal apoptosis, reduces microglial activation, and promotes neurogenesis.
Research indicates 10-30 mL daily via intravenous infusion for neurological indications. 5-10 mL for cognitive optimization.
Morning administration preferred for cognitive effects. IV infusion over 15-20 minutes.
10-20 day intensive cycles repeated every 3-6 months. Some protocols use ongoing 3x weekly maintenance.
DSIP is a naturally occurring nonapeptide (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) originally isolated from rabbit brain hypothalamus in 1977. It modulates GABAergic neurotransmission by potentiating GABA-activated currents in hippocampal and cerebellar neurons while blocking NMDA-activated potentiation in cortical neurons. It also interacts with opioid-associated receptors, modulates serotonin and dopamine systems (increasing serotonin levels), and promotes delta wave (slow-wave) sleep through mechanisms that remain incompletely characterized.
Research indicates 100-300 mcg administered before bedtime via subcutaneous injection or intranasal.
30-60 minutes before desired sleep onset. Evening only.
2-4 week cycles with equal rest periods to prevent tolerance.
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