Thymalfasin (also known as alpha1-Thymosin, alpha1 Thymosin): A thymus hormone polypeptide found in thymosin fraction 5 (a crude thymus gland extract) but now produced by synthesis. It is used alone or with interferon as an immunomodulator for the treatment of CHRONIC HEPATITIS B and HEPATITIS C. Thymalfasin is also us

NIH MeSH · D000077596Chemicals and Drugs

Thymalfasin

Also known asalpha1-Thymosin · alpha1 Thymosin · Thymosin alpha(1) · Thymosin alpha1 · Zadaxin

Definition

A thymus hormone polypeptide found in thymosin fraction 5 (a crude thymus gland extract) but now produced by synthesis. It is used alone or with interferon as an immunomodulator for the treatment of CHRONIC HEPATITIS B and HEPATITIS C. Thymalfasin is also used for the treatment of chemotherapy-induced immunosuppression, and to enhance the efficacy of influenza and hepatitis B vaccines in immunocompromised patients.

MeSH classification

  • D06.472.910.850.500
  • D12.644.548.869.500
  • D12.776.922.500

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Common questions about Thymalfasin

What does Thymalfasin mean in medicine?
A thymus hormone polypeptide found in thymosin fraction 5 (a crude thymus gland extract) but now produced by synthesis. It is used alone or with interferon as an immunomodulator for the treatment of CHRONIC HEPATITIS B and HEPATITIS C. Thymalfasin is also used for the treatment of chemotherapy-induced immunosuppression, and to enhance the efficacy of influenza and hepatitis B vaccines in immunocompromised patients. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Thymalfasin known by any other names?
Yes. Thymalfasin is also referred to as alpha1-Thymosin, alpha1 Thymosin, Thymosin alpha(1), Thymosin alpha1 in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Thymalfasin sit in the medical classification?
Thymalfasin falls under the broader medical category "Chemicals and Drugs" in the MeSH hierarchy (tree numbers: D06.472.910.850.500, D12.644.548.869.500, D12.776.922.500). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Thymalfasin?
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Source: NIH MeSH 2026 (D000077596) — National Library of Medicine, public domain. View official MeSH record ↗