EDUCATIONAL AND RESEARCH REFERENCE ONLY — NOT MEDICAL ADVICE — NOT FDA APPROVED
cognitive19 studies

Selank Dosing Protocol: Anxiolytic Research Guide

Also known as: TP-7

What is a Peptide?

A short chain of amino acids (2-50) linked by peptide bonds. Smaller than proteins. Your body produces thousands of peptides naturally as signaling molecules that regulate everything from appetite to healing. Therapeutic peptides mimic or enhance these natural signals.

Bottom Line Up Front

Selank is a Russian anxiolytic peptide developed alongside Semax. It has anxiolytic effects comparable to benzodiazepines without sedation or addiction potential. Modulates GABA and serotonin systems.

Best evidence for

Anxiety, stress reduction, cognitive function under stress

Weakest evidence for

Severe depression, panic disorders

Pharma equivalent

None

Studies on file

19 (3 human)

Research reference only. Selank is not FDA approved for human use (unless specified above). This information does not constitute medical advice.

Overview

Selank is a synthetic peptide derived from tuftsin. It has been studied for its potential anxiolytic and nootropic effects, particularly in stress and anxiety models.

Mechanisms of Action

  • Modulates enkephalin system
  • Influences GABA receptors
  • Anti-anxiety effects
  • Immunomodulatory properties

Research Protocols

Summaries of published research. For educational purposes only.

Protocol NameSourceDoseFrequencyDurationRouteEvidenceLinkSave
Anxiety Study
clinical trial
0.15% nasal spray3x daily14 daysIntranasalhumanSign in to Save

Related Studies

3 Human16 Animal

Although preclinical studies are promising, there is a current lack of clinical trials. This review integrates current mechanistic insights with orthopaedic relevance, emphasizing safety, efficacy, and future directions for responsible integration into musculoskeletal care.

Limitations: No placebo control reported. Review article — no new primary data.

2026|Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews
PubMed

Single intraperitoneal injection of Selank in an anxiolytic dose of 0.3 mg/kg reduced the total index of morphine withdrawal syndrome by 39.6%, significantly (&#x440;<0.0001) attenuated convulsive reactions, ptosis, and posture disorders, and 9-fold increased the tactile sensitivity threshold in morphine-dependent rats in comparison with the group of active control; at the same time, Selank was slightly inferior to diazepam in a dose of 2 mg/kg by pharmacological activity (the decrease in total index of morphine withdrawal syndrome by 49.3% and 13-fold increase in sensitivity threshold). Thus, Selank, like diazepam, weakens the aversive signs of morphine withdrawal in rats with opiate dependence.

Limitations: Animal study only — human translation uncertain.

2022|Bulletin of experimental biology and medicine
PubMed

As a result of the work performed to determine the concentration of pro-inflammatory and anti- inflammatory cytokines, it was found that in the serum of animals exposed to stress, there was a statistically significant increase in the level of IL-1&#x3b2;, IL-6 and TGF-&#x3b2;1 in individuals with both types of behavior. It should be noted that, under the conditions of this stressful impact, there was a tendency to decrease the concentration of IL-4 and increase the level of TNF-&#x3b1; but these indicators were not statistically significant.

Limitations: Animal study only — human translation uncertain.

2022|Current reviews in clinical and experimental pharmacology
PubMed

At the same time, our results partially confirm the hypothesis that the peptide may affect the interaction of GABA with GABAA receptors. Our data also suggest that Selank may enhance the effect of olanzapine on the expression of the genes studied.

Limitations: Animal study only — human translation uncertain.

2020|Frontiers in pharmacology
PubMed

Administration of Selank in doses of 300 and 1000 &#x3bc;g/kg restored the nucleus/cytoplasm ratio in hepatocytes. The maximum stress-limiting effect was attained after administration of 300 &#x3bc;g/kg Selank.

Limitations: Animal study only — human translation uncertain.

2019|Bulletin of experimental biology and medicine
PubMed

It was shown that Selank affect the [3H]GABA binding as a positive allosteric modulator. The joint action of Selank and some of benzodiazepines also regulates activity of [3H]GABA binding in specific manner, which is not cumulative and differs from either substance individually.

Limitations: Animal study only — human translation uncertain.

2019|Protein and peptide letters
PubMed

Under conditions of chronic stress, Selank in all doses produced similar effects: reduced superoxide dismutase activity and malondialdehyde concentration in the liver tissue and AST activity in the serum. The other parameters remained unchanged.

Limitations: Animal study only — human translation uncertain.

2018|Bulletin of experimental biology and medicine
PubMed

This paper describes eighty-six documents. Thirty-two of them concern on activity of tuftsin in the human organism.

Limitations: No placebo control reported. Review article — no new primary data.

2017|Current medicinal chemistry
PubMed

In conditions of chronic stress, anxiety indicator values after the simultaneous use of diazepam and Selank did not differ from the respective values observed before chronic stress exposure. The data obtained indicate that the individual administration of Selank was the most effective in reducing elevated levels of anxiety, induced by the administration of a course of test substances, whereas the combination of diazepam with Selank was the most effective in reducing anxiety in unpredictable chronic mild stress conditions.

Limitations: Animal study only — human translation uncertain.

2017|Behavioural neurology
PubMed

In some neurons, Selank-induced up-regulation of spontaneous inhibitory postsynaptic currents was preceded by a transient decrease in this activity. In the examined concentration range (1-8 &#x3bc;M), Selank demonstrated no significant dose-dependence.

Limitations: Animal study only — human translation uncertain.

2017|Bulletin of experimental biology and medicine
PubMed

Our results showed that Selank caused a number of alterations in the expression of genes involved in neurotransmission. The data obtained indicate that Selank is characterized by its complex effects on nerve cells, and one of its possible molecular mechanisms is associated with allosteric modulation of the GABAergic system.

Limitations: Animal study only — human translation uncertain.

2016|Frontiers in pharmacology
PubMed

The positive effect of phenazepam was achieved earlier in the optimization of treatment with selank on HDRS. The combined treatment decreased the level of undesirable side-effects of phenazepam (attention and memory impairment, asthenia, sedation, increase in sleep duration, sexual disturbances, emotional indifference and orthostatism) during the course of treatment and after the tranquilizer withdrawal.

Limitations: No placebo control reported.

2015|Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova
PubMed

It should be noted that in most cases, there was a coincidence in the expression profiles of the studied genes after Selank and Gly-Pro administration. This might indicate an active contribution of the dipeptide to the final effect of Selank.

Limitations: Animal study only — human translation uncertain.

2014|Molecular immunology
PubMed

The data obtained confirmed the participation of Selank in the processes of regulation of inflammation in the body. The complex biological effect of Selank may be partially determined by the systematic effect of this peptide on genomic expression.

Limitations: Animal study only — human translation uncertain.

2011|Regulatory peptides
PubMed

A high affinity of the studied glyprolines for gastric tissues was found for all the ways of their administration. We suggest that a high efficiency of action of glyprolines on homeostasis of the gastric mucous tunic was partially provided by accumulation of these peptides (to high concentrations) in gastric tissues.

Limitations: Animal study only — human translation uncertain.

2008|Bioorganicheskaia khimiia
PubMed

Selank did not affect the level of general locomotor activity and anxiety in WAG/Rij rats, and did not exert substantial effect on the behavior of control Wistar rats. The results demonstrate the presence of antidepressant component in the spectrum of neuropsychotrophyc activity of selank and indicate the higher reliability of a new experimental model of depression (the WAG/Rij rats) as compared to the standard forced swimming test for the determination of antidepressant activity of a pharmacological drug.

Limitations: Animal study only — human translation uncertain.

2008|Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova
PubMed

The anxiolythic properties of the heptapeptide Selanc that has also been shown to affect the opioid system are most prominent in subjects with elevated activity of enzymes degrading endogenous opioid peptides. Thus, delicate correction of the opioid system with drugs of peptide nature is supposed to become a new approach to treatment of some forms of anxiety disorders accompanied with exhaustion of the endogenous opioid system and, in particular, of generalized anxiety disorder.

Limitations: Animal study only — human translation uncertain.

2007|Vestnik Rossiiskoi akademii meditsinskikh nauk
PubMed

The high doses of peptide (10(-6)--10(-10) M) also augmented the contraction amplitude but decreased its frequency. The maintenance of adequate blood flow and lymphatic vessel contractility can be one of the mechanisms of the Selank antiulcerogenic properties.

Limitations: Animal study only — human translation uncertain.

2005|Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova
PubMed

The dynamic features of the development of the activating action of Selank and piracetam were described. Comparison of the results obtained here with data on the anti-anxiety actions of Selank suggested potential for its use in optimizing mnestic functions in conditions of elevated emotional tension.

Limitations: Animal study only — human translation uncertain.

2003|Neuroscience and behavioral physiology
PubMed

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Important Warnings

  • Prescription drug in Russia
  • Anxiolytic effects documented

Where to Get Selank

Licensed Compounding Pharmacy

Requires a prescription from a licensed provider. Compounding pharmacies can prepare custom formulations of Selank tailored to your prescribed dose.

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