DSIP: what the research shows
A small brain peptide named for deep sleep, whose effect still isn’t clear after 50 years.
Also known as Delta sleep-inducing peptide, emideltide
At a glance
Not approved. FDA advisers reviewed it in July 2026 as a possible compounding ingredient for opioid withdrawal, insomnia and narcolepsy.
What is DSIP?
DSIP is a peptide of nine building blocks. It was found in 1977 in the blood of rabbits in deep sleep, which is how it got its name.
How does DSIP work?
No one has pinned down how it works. Despite the name, scientists haven’t found a dedicated receptor or a reliable sleep effect.
What does the research show?
- Reviews describe decades of mixed results: some small studies reported better sleep, others found no effect.
- A 2006 review called it “a still unresolved riddle”.
Known risks and side effects
- Its effects and safety are not well established.
Is DSIP approved?
Mostly studied in cells and animals, with little or no proper testing in people.
Not approved. FDA advisers reviewed it in July 2026 as a possible compounding ingredient for opioid withdrawal, insomnia and narcolepsy.
From the community
Watch: DSIP and related science
Start with the compound discussion, then use the background lesson to understand its biology. Each card explains its connection. Recordings may predate later findings or regulatory changes.
U.S. Food and Drug Administration
FDA peptide compounding meeting: July 24, 2026
Full meeting covering DSIP (emideltide), Semax and Epitalon. Advisory discussion is not drug approval.
Official FDA advisory committee recording
Official regulatory recording
The original July 24, 2026 FDA discussion of DSIP, Semax and Epitalon; it documents an advisory review.
khanacademymedicine
Types of neurotransmitters
The roles of signalling molecules such as GABA, glutamate and peptide neurotransmitters.
Khan Academy · nervous-system physiology
Related biology
Background on neurotransmitter biology for understanding DSIP. It does not demonstrate benefits of this compound or formulation.
National Institute of Mental Health
What is clinical research?
Why studies in people are needed and what clinical research is designed to establish.
NIMH · US National Institutes of Health
Research skills
Helps you judge the study design or uncertainty in DSIP research; it is not a trial of the compound.
Sources and references
- Delta sleep-inducing peptide (DSIP): a still unresolved riddleKovalzon & Strekalova · Journal of Neurochemistry · 2006
- Delta-sleep-inducing peptide (DSIP): a reviewGraf & Kastin · Neuroscience & Biobehavioral Reviews · 1984
- FDA Pharmacy Compounding Advisory Committee, July 23–24, 2026US Food and Drug Administration · meeting page
VETUD Learn explains published research in plain language. It is general information, not medical advice. Talk to a doctor before starting, stopping or changing any treatment.
In the research shop
Check the catalog for related laboratory research materials. These products are separate from the approved medicines and clinical trial formulations discussed here.
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