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Selank

Selank (TP-7); Thr-Lys-Pro-Arg-Pro-Gly-Pro heptapeptide; tuftsin analog with C-terminal Pro-Gly-Pro extension

Early-Stage ClinicalNot FDA EvaluatedPrimary Endpoint Met

Not FDA-approved. Not on the FDA Category 2 list (only the parent compound Semax is listed). Approved in Russia as an anxiolytic.

A synthetic peptide developed and used clinically in Russia for reducing anxiety and supporting cognitive function. It works by calming the brain's natural relaxation system and preserving mood-regulating brain chemicals. It is not approved by the US FDA or European regulators.

14 studiesUpdated 2026-03-12Intranasal (primary clinical route; 0.15% nasal spray solution in Russia) · Subcutaneous injection (common in community/research use) · Intraperitoneal (preclinical/research only)

This entry is a cited research summary, not an established treatment reference. Dosing language is included as source context, not as medical instruction.

Clinical bottom lineMixed evidence

Selank has moderate clinical evidence but is not FDA-approved.

Not FDA-approved. Not on the FDA Category 2 list (only the parent compound Semax is listed). Approved in Russia as an anxiolytic.

Safety Summary

Selank is generally well tolerated with minimal adverse effects. No serious adverse events, dose-limiting toxicities, dependence, tolerance, or withdrawal phenomena have been documented in human trials or preclinical studies. The Medvedev et al. 2015 study PMID 26356395 found that adding selank to phenazepam actually decreased undesirable benzodiazepine side effects (attention/memory impairment, asthenia, sedation, sexual disturbances). No evidence of carcinogenicity in preclinical studies. Embryonic stem cell toxicity testing showed selank produced no toxic effect during embryonic/fetal period PMID 29063333.

Clinical check-in

If real-world use or exposure is being considered, review potential interactions, contraindications, and monitoring needs with a licensed clinician rather than relying on summary copy alone.

See cited studies on this page (14)

Cited sources

Every claim on this page links to one of the 14 sources below. Identifiers are PubMed (PMID), ClinicalTrials.gov (NCT), or DOI; click through to the source of record before acting on a claim.

  1. 1PMID 18454096PubMed
  2. 2PMID 26356395PubMed
  3. 3The effectiveness of selank in the treatment of adjustment disorderReference
  4. 4PMID 26924987PubMed
  5. 5PMID 28280289PubMed
  6. 6PMID 27878720PubMed
  7. 7PMID 31625062PubMed
  8. 8PMID 29787664PubMed
  9. 9PMID 30255741PubMed
  10. 10PMID 28702721PubMed
  11. 11PMID 28853100PubMed
  12. 12PMID 29063333PubMed
  13. 13PMID 28361410PubMed
  14. 14PMID 29181670PubMed