Cerebrolysin is a porcine brain‑derived peptide preparation containing low‑molecular‑weight neuropeptides and free amino acids that crosses the blood–brain barrier to support neuronal survival. It mimics endogenous neurotrophic factors (e.g., NGF, BDNF) and modulates neuroinflammatory mediators. This educational protocol presents a once‑daily subcutaneous approach using a practical dilution for clear insulin‑syringe measurements.