# DSIP

Named in the 1970s for the deep sleep it seemed to cause in rabbits. The name has outlasted the evidence.

Also called: Delta sleep-inducing peptide, Emideltide
Source page: https://peplogue.com/peptides/dsip/
Reviewed: 2026-10-12. Not medical advice.

## How it works

- Where it acts: No receptor has been found.
- What it changes: Early rabbit studies suggested more deep sleep. Later studies did not hold up consistently.
- What people notice: Human sleep studies are small and mixed.

## What the evidence shows

- **Insomnia**: Early. The one double-blind study we could read, in 16 people with chronic insomnia, found small changes on sleep-lab measures and none in how people felt they slept. Its authors judged it unlikely to be of major benefit. Older, looser studies were more positive.

## Side effects and risks

- unknown: FDA has found no safety information for it and cites the risk of immune reactions and impurities.

Who should avoid it: With so little evidence of benefit, there is little reason to accept unknown risks.

## How it has been given in studies

Into a vein in the afternoon, before nights in a sleep laboratory. There is no established dose for the injections and sprays sold online.

## Legal status

- United States: undefined
- European Union: undefined
- Spain: undefined. No DSIP (emideltide) medicine in CIMA. Research peptide, not authorised in Spain and not lawful to sell to the public.
- Germany: undefined. Not approved in Germany. Selling it as a medicine without approval is a crime (AMG § 21, § 96); sold online only as 'research' products.
- France: undefined. No French authorisation found. Not named by ANSM, but its Jul 2026 alert says peptides bought outside the official circuit are illegal.
- Italy: undefined. No Italian authorisation found. Not lawful to sell to the public as a medicine. Research-grade vials online are unverified products.
- Netherlands: undefined. No Dutch marketing authorisation found. Selling it as a medicine without one is illegal per IGJ, even if labelled 'research use'.
- United Kingdom: undefined
- Canada: undefined
- Australia: undefined

## Questions people ask

**Does DSIP help you sleep?**

The one double-blind study this book could read, in 16 people with chronic insomnia, found small changes on sleep-lab measures and none in how people felt they slept. Its authors judged it unlikely to be of major benefit.

**How does DSIP work?**

No receptor has been found. Early rabbit studies suggested more deep sleep, but later studies did not hold up consistently.

**Is DSIP safe?**

FDA has found no safety information for it and cites the risk of immune reactions and impurities. With so little evidence of benefit, there is little reason to accept unknown risks.

**Can DSIP be compounded in the US?**

FDA advisers voted 6 to 7 against compounding in July 2026.

## Sources

- Bes et al. 1992: DSIP in chronic insomnia: https://karger.com/nps/article-abstract/26/4/193/231036
- McDermott: July 2026 advisory committee votes: https://www.mcdermottlaw.com/insights/bulk-list-bound-pcac-backs-majority-of-peptides-in-two-day-public-meeting/
- FDA: bulk substances that may present significant safety risks: https://www.fda.gov/drugs/human-drug-compounding/certain-bulk-drug-substances-use-compounding-may-present-significant-safety-risks