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    Nasal Spray
    Stronger intranasal relevance

    Selank (Nasal Spray)

    Intranasal (nasal spray)3× daily

    Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) is an anxiolytic neuropeptide approved in Russia, available as a nasal spray.

    Reviewed by the AllPeptides.eu Editorial Team·Last reviewed: 2026-06-16

    Mechanism of Action

    Selank acts as a stabilized analogue of tuftsin, affecting GABAergic and serotonergic systems. Research data indicates anxiolytic action with a low sedative profile, although the data originates primarily from Russian studies.

    Overview

    • Nasal administration — no injection
    • Approved in Russia as an anxiolytic
    • Dosing: 250–500 mcg per application
    • No reconstitution required

    Intranasal Delivery — Research Data

    • Selank is approved in Russia as an anxiolytic drug in a nasal spray format (0.15%).
    • It acts as a stabilized analogue of tuftsin, a natural immunopeptide.
    • Nasal bioavailability is considered adequate based on clinical data, although the mechanism of central access remains under investigation.

    Stronger intranasal relevance

    Clinical studies or approved formulations exist for intranasal delivery.

    Detailed Protocol Data

    Dosing Table — Selank Nasal Spray

    Educational only
    PeriodDoseNotes
    Typical dose250–500 mcg × 3/dayPer formulation

    Clinical cycles of 10–14 days. Self-administration instructions are not provided.

    Formulation Notes

    No self-preparation instructions provided

    • It is supplied as a ready-to-use nasal spray — no reconstitution is required.
    • Self-preparation of nasal spray is not recommended.

    Storage After Opening

    • Refrigerator (2–8°C) after opening.
    • Use within 14 days.

    Dosing Protocol

    • 250–500 mcg per nostril, 3 times daily.
    • Cycles of 10–14 days.

    Storage Instructions

    • Refrigerator (2–8°C).
    • Protect from light.

    Important Notes

    • Not approved by the FDA or EMA.
    • Clinical data is primarily from Russian studies.
    • Self-preparation instructions are not provided.
    Clinical Analysis & Safety

    Benefits & Side Effects

    Potential Benefits

    • Anxiolytic action without drowsiness (research data)
    • Potential enhancement of memory and learning
    • Immunomodulatory properties (tuftsin analogue)

    Potential Side Effects

    • Mild nasal irritation
    • Rare headache

    References

    1. Anxiolytic properties of Selank — Clinical trial — Clinical trial of the anxiolytic properties of Selank in nasal form
      Source →
    2. Frontiers in Pharmacology (2016) — Selank & GABAergic Neurotransmission — Selank administration affects the expression of some genes involved in GABAergic neurotransmission
      Source →

    Intranasal Peptide Delivery: Complete Guide

    Bioavailability, absorption factors, comparison with injectables, and limitations of nasal delivery.

    Research Limitations

    The data on this page is strictly educational. No self-preparation or self-administration instructions are provided.

    Research Sources & Verified Data
    …
    Clinical Trials
    …
    PubMed Studies
    Research-only
    FDA Status
    1
    Regulatory Approvals
    Verified across ClinicalTrials.gov, PubMed & FDA

    External Sources & Regulatory Status

    Regulatory Approvals

    🇷🇺
    МЗ РФ
    Approved

    Anxiety disorders (2008)

    Approved in Russia (2008)

    No official regulatory source available yet — research peptide.

    Educational information. Not medical advice, and no efficacy claim is implied. Regulatory approval is not a use recommendation by AllPeptides.eu.

    Summary:
    1 Approvals
    0 PubMed
    0 Clinical Studies
    Educational contentRegularly reviewed & maintainedEvidence-based review

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