DSIP (Delta Sleep-Inducing Peptide) and Melatonin: what the published research says
PubMed indexes 5 records that name DSIP (Delta Sleep-Inducing Peptide) and Melatonin together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to DSIP (Delta Sleep-Inducing Peptide) and Melatonin. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
A study appearing here is not proof that an interaction exists. Two substances can be named together in a paper that never tested them in combination, and a source listed as background may cover only one of them.
Findings are quoted from each abstract as the authors wrote them. NutriStack has not re-analysed, pooled, or reconciled them, and they may disagree with each other.
NutriStack’s own interaction assessment for this pair is not published here. It has not completed qualified-human clinical review, so it is withheld from search. See the publication gate.
Nothing here is medical advice. Decisions about prescription medication and supplements belong with your prescriber or pharmacist, who can see your full regimen.
The research
5 studies naming DSIP (Delta Sleep-Inducing Peptide) and Melatonin.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
Research Support, U.S. Gov't, Non-P.H.S.Animal study
“All drugs increased the vulnerability to seizures relative to the saline control during the daytime, while only beta-endorphin and DSIP offered improved protection during the night hours. The possibility of dopaminergic mediation is suggested to account for the effects.”
Names both DSIP (Delta Sleep-Inducing Peptide) and Melatonin in its title.
“The DSIP-stimulated release of MEL was not significantly altered when the pineal glands were treated with 10(-5) M propranolol (a beta-adrenergic antagonist), 10(-5) M prazosin (an alpha 1-adrenergic antagonist) or 10(-5) M naloxone (an opioidergic antagonist). This study demonstrates that the DSIP-induced secretion of indolamines from rat pineal glands may not be elicited through the well-known noradrenergic or opioid systems.”
Names both DSIP (Delta Sleep-Inducing Peptide) and Melatonin in its title.
Research Support, U.S. Gov't, Non-P.H.S.Animal study
“At the other two nocturnal time points (01:00 and 03:00 h) and the following morning (08:00 h) pineal NAT activity and melatonin levels were similar in all groups. The results confirmed a short-lived, dose-specific effect of DSIP on serotonin metabolism in the rat pineal gland.”
Names both DSIP (Delta Sleep-Inducing Peptide) and Melatonin in its title.
“While both DSIP and melatonin hypothermic effects were both circadian cycle dependent in intact rats the rhythmicity of melatonin hypothermic effect in pinealectomized rats, and DSIP hypothermic effect in hypophysectomized rats was missing. Although several hypotheses have been offered to account for the physiological mechanism(s) that govern the effects of the drugs, it is not yet possible to reliably relate the findings to existing neurochemical theory.”
Names both DSIP (Delta Sleep-Inducing Peptide) and Melatonin in its title.
“TSH, cortisol, and melatonin values were also stable within an 8-month period in one subject who was studied on four occasions. The results illustrate that the patterns of hormones rhythms and their reactivity to changes in the environment are, to a large extent, specific to each subject.”
Names DSIP (Delta Sleep-Inducing Peptide) and Melatonin together in an interaction, co-administration, or pharmacokinetic context.
Limitations
What this evidence cannot tell you.
Search-based evidence indexes have real limits, and it is worth being explicit about them:
Selection. These records were found by searching PubMed titles and abstracts for both substance names alongside interaction and pharmacokinetic terms. Relevant work that phrases things differently, or is not indexed in PubMed, will be missing.
No effect size. The quoted conclusions are the authors’ words about their own study. We have not extracted effect direction or magnitude, and a single study’s conclusion is not a consensus.
Population mismatch. Findings in healthy volunteers, animals, or a specific patient group may not transfer to you, your dose, or your formulation.
Absence is not safety. Few published studies means the combination is under-studied, which is not the same as established as safe.
Nearby evidence
Other pairs with published research.
Pages covering DSIP (Delta Sleep-Inducing Peptide) or Melatonin alongside a different substance.
NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers DSIP (Delta Sleep-Inducing Peptide), Melatonin, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.
