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Limited / uncertainNot FDA-approved

Semax

Synthetic ACTH-fragment analog

Also indexed as: ACTH 4-10 analog

What this evidence does not tell us

The linked receptor-binding study uses rat brain membranes; it is not a human cognition trial. Regional clinical reports require independent replication and appraisal.

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7 glossary terms used in this profile

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Definitions explain the words—not whether a molecule works or is safe. Research education only, not medical advice.

Overview

Semax is a synthetic peptide analog related to an ACTH fragment. This profile covers research context without assuming that laboratory findings establish cognitive or neurological treatment benefit.

Mechanism of action

ACTH-related / neurotrophic signaling

Laboratory research examines peptide binding, degradation and neurotrophic signaling associated with an ACTH-derived analog. The linked rat-brain study is not validation of human neurological benefit.

A biological pathway describes a proposed or observed interaction—not necessarily a demonstrated health outcome.

Decode the terminology in our glossary

Scientific evidence

How strong is the evidence?

Not enough reliable evidence

  1. Limited evidenceCurrent category
  2. Early research
  3. Human research
  4. Human outcomes

There is too little dependable or verified research here to draw a useful conclusion about benefit in people.

For this research: The linked receptor-binding study uses rat brain membranes; it is not a human cognition trial. Regional clinical reports require independent replication and appraisal.

An editorial guide—not a validated score, a percentage, a safety rating or an approval badge. Regulatory status is separate. More research does not mean fewer risks.

Cell studies

The linked study examines binding and degradation in rat brain membrane preparations.

Animal experiments

Animal evidence is not separately assessed here. Findings in animals must not be interpreted as demonstrated human benefit.

Human observational studies

Associations, biomarker studies and anecdotes cannot establish treatment causality; no observational result is used here to infer clinical effectiveness.

Human clinical trials

Reliable, independently replicated human outcome evidence is not established by the selected sources in this edition.

Regulatory evidence

No FDA-approved finished drug for this molecule is identified in this edition. Investigational use, published research or compounding does not establish FDA approval.

Potential research applications

Neuropeptide signaling and neurological research hypotheses.

These describe scientific questions, not prescribing recommendations. A research grouping does not establish combination safety or clinical effectiveness.

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Safety considerations

FDA identifies limited safety information and possible immunogenicity and peptide impurities. Long-term neurological effects and drug interactions remain uncertain.

This is not an exhaustive safety or contraindication list. An absence of reported harm is not proof of safety. Pregnancy, breastfeeding, cancer history, endocrine disease and concurrent medicines can materially change risk. Unregulated preparations add identity, contamination and sterility risks.

Read FDA’s compounding safety information

Regulatory status · United States

Not FDA-approved

No FDA-approved finished drug for this molecule is identified in this edition. Investigational use, published research or compounding does not establish FDA approval.

Regulatory status and evidence strength are different. A nomination for compounding, a clinical-trial registration or a “research use only” label is not approval. International rules vary; consult the current regulator and product label.

Selected literature & source transparency

Cell / animal study· 2004

[The binding of Semax, ACTH 4-10 heptapeptide, to plasma membranes of the rat forebrain basal nuclei and its biodegradation].

Bioorganicheskaia khimiia

Matched bibliographic records confirm a publication’s identity, not the validity of every claim. Selected sources are not a systematic literature review.

Continue your own source search

These open search results, not additional verified citations. Trial registration is not evidence that a treatment works.

Three questions worth bringing to your clinician

  1. Which human outcomes—not just biomarkers—support this claim?
  2. What established options address my actual health concern?
  3. What do my medical history and current medicines change about the risks?

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Education, not a prescription. Research summaries are not medical advice, dosing instructions, or an offer to sell. Mechanistic findings do not establish clinical effectiveness. US regulatory status is product- and indication-specific and may change. Discuss health decisions with a licensed clinician.