BNP (B-type Natriuretic Peptide) vs Cortexin

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

BNP (B-type Natriuretic Peptide)

BNP is a cardiac neurohormone released primarily by ventricles in response to volume/pressure overload. It's a major biomarker for heart failure and has therapeutic applications as nesiritide.

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Cortexin

Cortexin is a polypeptide complex derived from pig brain cortex, used clinically in Russia and Eastern Europe for neurological conditions including stroke recovery, traumatic brain injury, and cognitive decline.

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Side-by-Side Comparison

Aspect	BNP (B-type Natriuretic Peptide)	Cortexin
Dose Range	25 mcg–100 mcg	10 mg–20 mg
Frequency	1x daily	1x daily
Cycle Length	1–4 weeks	1–2 weeks
Route	subcutaneous	intramuscular
Mechanism	Similar to ANP - activates NPR-A receptors to produce vasodilation, natriuresis, and RAAS suppression. Released in response to ventricular wall stress.	Contains a mixture of neuropeptides and amino acids that support neuronal metabolism, provide neuroprotection, and enhance synaptic transmission. Specific mechanisms not fully characterized.
Typical Dosage	Nesiritide (recombinant BNP): 2mcg/kg IV bolus followed by 0.01mcg/kg/min continuous infusion for acute decompensated heart failure.	Clinical protocols: 10mg intramuscularly once daily for 10-20 days. May be repeated after 3-6 month interval.
Administration	Intravenous administration only. Used in acute care settings for heart failure. BNP levels also used diagnostically.	Intramuscular injection. Comes as lyophilized powder requiring reconstitution. Treatment given in courses rather than continuously.
Side Effects	Hypotension (common and dose-limiting), headache, nausea, and potential renal function worsening in some patients.	Generally well-tolerated. May cause injection site reactions or mild allergic responses in sensitive individuals.
Best For	Recovery & Healing	Recovery & Healing Cognitive Performance