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Selank dosage

Compare Selank nasal daily totals with injection progressions, including timing, course lengths and breaks. Calculate volume and syringe units using your own vial inputs.

Full Selank library reference

Selank dosage chart

This summary table compares available dose amounts and schedules by administration route.

RouteDoseFrequency & duration
Intranasal250–400 mcg/day1-2 times daily · 2-6 weeks
Injectable~250 mcgDaily · 2–6 wk

Selank dosage by administration route

Selank intranasal dosage

Reported intranasal protocols use 250–400 mcg per day, divided across 1-2 administrations daily for 2-6 weeks.[1][2][3]

Selank is a tuftsin-derived peptide associated with anxiety and stress-response signaling. Nasal concentration and the volume delivered per application determine the actual amount.[2][3][4]

Selank injectable dosage

Reported-use amounts for Selank are ~250 mcg per administration, daily, for 2–6 wk. A reported subcutaneous progression uses 300 mcg once daily for weeks 1–2 and 500 mcg once daily for weeks 3–4, followed by four weeks off. This four-week-on/four-week-off pattern is not a nasal formulation schedule.[10][11]

Injectable Selank is a separate preparation of the tuftsin-derived peptide. Nasal concentration and delivered spray volume do not define its injection amount.[2][3][4][10]

Frequency and timing

Afternoon or evening is the listed timing for the nasal and injection patterns.[1][2][3][10]

Cycle length and breaks

Intranasal: 2-6 weeks. Injectable: 2–6 wk. A separate reported subcutaneous cycle pattern uses four weeks on followed by four weeks off; nasal schedules differ.[1][2][3][10][11]

Selank dosage calculator

Convert your chosen Selank amount into volume and U-100 syringe units. Adjust the inputs to match your vial and preparation.

Selank dosage calculator

Editable calculation example. Enter your chosen amount and the details of your vial; these starting values are not a recommended dose.

mcg
mg
mL
Concentration
5mg/mL
Draw units
—units
Total doses
—
Volume per dose
—mL
Daily amount
—mcg
Complete days per vial
—
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Selank safety and side effects

Approval and product quality

Selank is not an FDA-approved drug.[1][7][8][9]

Side effects and long-term safety

Nasal irritation, fatigue, headache and calm or sedating effects are practical tolerability concerns. Long-term intranasal use, medication interactions, pregnancy and pediatric safety remain poorly characterized.[2][3][4][5]

Route-specific dosing limits

Medication overlap, psychiatric context, and formulation quality drive the cautions. Reported-use injectable schedules and additional protocol patterns are not established human treatment regimens or approved product instructions.[2][3][4][5][11][10]

Stacks that include Selank

Open a stack dosage guide for its component amounts, schedules and supporting information.

For a blend calculation, each component's amount and the final volume must be known. A total blend weight alone cannot tell you the dose of each component.

Common Selank dosage questions

Is the listed Selank amount a daily total?

Amounts marked /day are the total for the day. They are not an amount to repeat at each administration; the amount per administration depends on how that total is divided.[1][2][3]

What dosage is listed for Selank?

Reported intranasal protocols use 250–400 mcg per day, divided across 1-2 administrations daily for 2-6 weeks.[1][2][3]

Does Selank have a standard cycle or break interval?

Intranasal: 2-6 weeks. Injectable: 2–6 wk. A separate reported subcutaneous cycle pattern uses four weeks on followed by four weeks off; nasal schedules differ.[1][2][3][10][11]

Sources

Show citationsHide citations
[1]Search Drugs@FDA for SelankU.S. Food and Drug Administration. database query.[2][Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia].Zh Nevrol Psikhiatr Im S S Korsakova, 2008. human clinical.[3]Peptide-based Anxiolytics: The Molecular Aspects of Heptapeptide Selank Biological Activity.Protein Pept Lett, 2018. review.[4][Immunomodulatory effects of selank in patients with anxiety-asthenic disorders].Zh Nevrol Psikhiatr Im S S Korsakova, 2008. human clinical.[5]Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating of BDNF Content in the Hippocampus and Prefrontal Cortex in Rats.Bull Exp Biol Med, 2019 Sep. animal.[6]Semax, an analog of ACTH((4-7)), regulates expression of immune response genes during ischemic brain injury in rats.Mol Genet Genomics, 2017 Jun. animal.[7]Compounding and the FDA: Questions and AnswersU.S. Food and Drug Administration. official guidance.[8]Bulk Drug Substances Used in Compounding Under Section 503A of the FD&C ActU.S. Food and Drug Administration, 2026-05-14. official guidance.[9]Bulk Drug Substances Used in Compounding Under Section 503B of the FD&C ActU.S. Food and Drug Administration, 2025-01-07. regulatory.[10]PepFlow peptide cheat sheet — reported-use and product-orientation reference (not clinical research)PepFlow. reference catalog.[11]Selank — Everything Peptide reported protocol (educational reference, not clinical evidence)Everything Peptide. reference catalog.

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