Semax

Semax

Research use only. Semax is not FDA-approved. This information is educational and not medical advice.

Description

Semax is a synthetic peptide based on the ACTH(4–10) fragment, developed in Russia and studied for neuroprotective and cognitive effects. It is most commonly used intranasally in research/clinical settings described in the literature, with proposed mechanisms involving modulation of neurotrophic factors (including BDNF-related pathways), neurotransmitter balance, and anti-ischemic effects in the brain.

Common research theme: Semax has been studied in ischemic stroke and cognitive recovery contexts, particularly via intranasal administration.

Potential Benefits (as studied)

  • Neuroprotection in ischemia/stroke models and clinical studies (intranasal use).
  • Support of cognitive performance under fatigue/stress in some studies.
  • Possible upregulation/modulation of neurotrophic signaling (e.g., BDNF-related pathways) in experimental work.
  • May influence inflammatory signaling in the CNS (research context).

Side Effects

  • Nasal irritation or runny nose (intranasal).
  • Headache.
  • Transient agitation or insomnia (if taken late).
  • Blood pressure changes are not commonly emphasized but monitor individually.

Contraindications / Who Should Avoid

  • Pregnancy/breastfeeding (avoid; insufficient data).
  • History of severe anxiety/panic that worsens with stimulatory agents.
  • Use caution with significant psychiatric or neurologic disease without clinician oversight.
  • Allergy to components/excipients.

Dosing Protocols (Research/Reference)

Intranasal (common reference range)

  • 200–600 mcg/day, often divided into 2–3 administrations.
  • Typical cycles discussed: 10–14 days, then break (varies by protocol).

Reconstitution / delivery notes

  • If using a nasal spray, calibrate mcg per spray based on concentration and sprayer output.
  • Keep solutions refrigerated and use conservative sterility practices.

Subcutaneous (less common)

  • 200–500 mcg per day (community reference; not standardized).
Tip: If you’re testing response, start low (e.g., 100–200 mcg/day) and titrate up as tolerated in a research protocol.

Stacking Suggestions (Research Context)

  • Sometimes paired with Selank to balance “drive/focus” with “calm” effects; introduce sequentially.
  • For neuroprotection research, some protocols also discuss antioxidants and sleep optimization as baseline.

Research Sources (PubMed)

  1. Gusev EI et al. Neurosci Behav Physiol. 2005. PMID: 16076063
  2. Zarubina IV. Neurosci Behav Physiol. 2002. PMID: 11827870
  3. Myasoedov NF et al. Neurosci Behav Physiol. 2004. PMID: 15209373
  4. Stavrovskaya AV et al. Bull Exp Biol Med. 2006. PMID: 17066922
  5. Karpova IV et al. Bull Exp Biol Med. 2009. PMID: 19302025
  6. Andreeva LA et al. Bull Exp Biol Med. 2010. PMID: 20351464
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