Lesson · 2 min read · Selank
Selank: what the studies show
Selank and modified variants
Selank is the synthetic heptapeptide Thr-Lys-Pro-Arg-Pro-Gly-Pro, also called TP-7. N-acetyl Selank and N-acetyl Selank amidate are chemically modified variants. The cited studies do not establish these variants' effectiveness or interchangeable delivery.
The anxiety comparison
A Russian study compared Selank in 30 patients with medazepam in 32 patients who had generalized anxiety disorder or neurasthenia. The authors reported similar anxiety-scale effects. PubMed classifies the report as randomized, but the accessible English abstract gives no placebo arm and insufficient detail on blinding, route, or duration.
Similar results against another drug do not prove equal effectiveness without a defined equivalence margin. The comparison also cannot establish long-term freedom from dependence or adverse effects.
Nasal research and safety gaps
A separate rat experiment used intranasal Selank over 14 days and measured maze behavior under stress. That experiment does not establish a human nasal schedule or benzodiazepine combination.
No FDA-approved product was identified. FDA describes unresolved risks for Selank acetate. Placebo-controlled clinical benefit and formulation-specific human safety remain unresolved.
Quick check
What is the main limit of the 62-patient Selank comparison?
Sources
- Zozulia et al., 2008: Selank compared with medazepam in 62 patients
- Kasian et al., February 9, 2017: Selank and diazepam in stressed rats
- NLM MeSH 2026: Selank, TP-7, and the native heptapeptide sequence
- FDA: compounding safety concerns, updated April 22, 2026
- FDA Drugs@FDA: no application for selank, searched November 6, 2026
Peptiday editorial summary, not clinically reviewed, November 6, 2026. For education only, not medical advice. Talk to a clinician before starting, stopping or changing treatment.