Comparison
DSIP vs. Sekretin
Two peptides side-by-side — identity, evidence base, legal status and known adverse events.
Identity
Category
Research other
Research other
CAS no.
62568-57-4
no data
Molecular weight
848.81 g/mol
3055.5 g/mol
Half-life
0.1 h
no data
Sequence
Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Gluno data
Mechanism of action
DSIP
DSIP was described in 1977 by the Schoenenberger-Monnier group in Basel as a blood-borne substance reported to induce EEG changes similar to delta sleep in animal models. The exact mechanism remains undefined to this day: no defined receptor, proposed modulation of opioid, GABAergic and glutamatergic systems. Most mechanistic findings stem from preclinical studies of the 1980s and 1990s and were later subjected to contested replication attempts.
Sekretin
Secretin binds the Gs-coupled secretin receptor (SCTR) on pancreatic duct cells, opens CFTR chloride channels and triggers secretion of bicarbonate-rich pancreatic fluid and bile flow.
Evidence base
Highest evidence
Human trial
Human trial
Studies
4
0
of which in humans
1
0
Effects recorded
3
2
Open conflicts
1
0
Documented adverse events
1
1
Legal status
Full entries
Frequently asked questions
- What is the difference between DSIP and Sekretin?
- DSIP is classified as "Research other", while Sekretin is classified as "Research other". DSIP: Synthetic nonapeptide isolated in 1977 by Guido Monnier and Marcel Schoenenberger from the blood of rabbits in delta sleep. Despite the name, the role in sleep regulation is contested and not confirmed by Western RCTs in larger populations. Sekretin: Secretin is a 27-amino-acid hormone that regulates pancreatic bicarbonate secretion. As ChiRhoStim it is FDA-approved as a diagnostic agent (pancreatic function test, gastrinoma test, secretin-enhanced MRCP). This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, DSIP or Sekretin?
- The highest available evidence level is "Human trial" for DSIP and "Human trial" for Sekretin. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
- What is the legal status of DSIP and Sekretin in Germany and the United States?
- Germany: DSIP — Unapproved, Sekretin — Prescription. United States: DSIP — Unapproved, Sekretin — Prescription. These are factual summaries with source and review date on the individual pages.