What is Emideltide?

By The Docket DeskResearched & sourcedUpdated 24 Jul 2026

Emideltide, better known as delta sleep-inducing peptide (DSIP), is a naturally occurring neuropeptide first described decades ago and studied for sleep and stress. It is not an FDA-approved drug.

What the evidence shows

EVIDENCE GRADE · MIXED · DATED, INCONSISTENT FINDINGS

Human research on DSIP dates back several decades and has produced inconsistent results. By modern standards it is not established as a safe and effective treatment for insomnia, opioid withdrawal, or any other condition.

Is it legal?

Emideltide is not FDA-approved. In April 2026 it was removed from FDA Category 2 but not moved to the approved Category 1 list, so legal compounding is not authorized; the PCAC declined to recommend it on July 24, 2026.

FDA approvalNot approved

Compounding statusRemoved from Category 2 (Apr 2026, nominations withdrawn) · not on Category 1 — compounding not authorized

PCAC recommendationRecommended against (Jul 24, 2026) — advisory; FDA makes the final call

Use under reviewOpioid withdrawal, chronic insomnia, and narcolepsy

Earliest pharmacy accessNo pathway open unless the FDA departs from the committee’s advice

Will Emideltide become legal in 2026?+

Not automatically. The committee voted against recommending it on July 24, 2026. The FDA still makes the final call, but it has opened no rulemaking here. Unless the FDA departs from the committee’s advice, no compounding pathway opens.

Is “research-grade” Emideltide the same as a medicine?+

No. Material sold “for research use only” is not made or tested to pharmaceutical standards, is not authorized for human use, and carries no guarantee of identity, purity or sterility. This site does not link to or evaluate these sellers.

Primary sources: FDA 503A interim list; FDA-reviewed uses per PCAC agenda · FDA Advisory Committee Calendar; Federal Register docket FDA-2025-N-6895.

Medical & editorial disclaimer. This article is independent reference information, not medical advice and not a recommendation to use any substance. Emideltide is not FDA-approved. Nothing here should be used to obtain, prepare, or self-administer any drug. Talk to a licensed clinician about your health. Peptide Docket is not affiliated with the FDA and does not sell peptides.