Side-by-Side Comparison · 2026

Neuromedin U vs Neuropeptide S

Neuromedin U vs Neuropeptide S — mechanism, half-life, dosing, and research status compared. Which is right for your protocol?

Neuromedin U
Neuropeptide

Neuromedin U (NMU) is a neuropeptide first isolated from porcine spinal cord and named for its ability to contract the uterus. Two bioactive forms exist in humans: the shorter NMU-23 and the predominant NMU-25, both C-terminally amidated....

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Neuropeptide S
Neuropeptide

Neuropeptide S (NPS) is a 20-amino acid peptide discovered in 2004 that acts on the NPS receptor (NPSR1), a Gq/Gs-coupled GPCR with highest expression in amygdala, hypothalamus, and brainstem arousal centers. NPS produces a distinctive combination of simultaneous wakefulness prom...

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Key Parameters
Parameter Neuromedin U Neuropeptide S
Category Neuropeptide Neuropeptide
Research Research Preclinical
Half-Life Short (minutes) Short (minutes, CNS)
Typical Dose 1-10 nmol/kg (animal) 0.1-10 nmol (ICV, animal)
Frequency Variable Variable
Route Subcutaneous, Intracerebroventricular Intracerebroventricular (animal research)
FDA Status Not approved Not approved

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Frequently Asked Questions
What is the difference between Neuromedin U and Neuropeptide S?
Neuromedin U: Neuromedin U (NMU) is a neuropeptide first isolated from porcine spinal cord and named for its ability to contract the uterus. Two bioactive forms exist in humans: the shorter NMU-23 and the predomina... Neuropeptide S: Neuropeptide S (NPS) is a 20-amino acid peptide discovered in 2004 that acts on the NPS receptor (NPSR1), a Gq/Gs-coupled GPCR with highest expression in amygdala, hypothalamus, and brainstem arousal ...
Which has a longer half-life, Neuromedin U or Neuropeptide S?
Neuromedin U half-life: Short (minutes). Neuropeptide S half-life: Short (minutes, CNS).
Can you stack Neuromedin U and Neuropeptide S?
Neuromedin U and Neuropeptide S are in the same category and used together in research protocols. Always consult relevant literature and follow appropriate guidelines.

For research use only. Not medical advice. ASCEND does not conduct or endorse any specific research protocol. Always consult relevant scientific literature and regulatory guidelines.