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  • Basic Info
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Generic: Liver Extract
treats Hepatic disorders, Surgical uses, Chronic fatigue syndrome, Chronic hepatitis, and Pernicious anemia

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Alkaline phosphatase isoenzymes, aqueous liver, bovine liver extract, crude liver extract, cyanocobalamin, hydrolyzed liver extract, hydroxocobalamin, iron, LEx, liquid liver extract, liver, liver concentrate, liver extract lysate, liver factors, liver fractions, liver glandular products, liver hydrolysate, liver substance, purified liver extract, raw liver, Solcohepsyl®, Solcohepsyl® extralysate, subcellular liver fractions, vitamin B12.

Note: Although liver extract contains many constituents, such as vitamin B12, this monograph focuses on liver extract research.


Liver extract and desiccated (dried) liver have been marketed as iron supplements for over a century. The extract is processed cow or pig liver that may either be a freeze- dried brownish powder or a concentrated liquid that has had most of the fat and cholesterol removed.

Preliminary clinical studies indicate that liver extract may be helpful in treating hepatic (liver) dysfunction. In addition, liver extract seems to work synergistically with interferon in treating hepatitis C and other viral infections. More research is needed in these areas.

Laboratory studies indicate that liver extract may have some effects that could be useful in treating certain forms of cancer, such as the ability to direct migration of metastasizing cells and the inhibition of DNA, RNA, and protein formation. More research is needed in these areas to quantify liver extract's properties.

Some concern has been raised about the safety of liver extract, as it is made of animal liver, which may be infected with parasites, bacteria, or prion diseases. Although there are currently no available reports of diseases such as bovine spongiform encephalitis (BSE, or "mad cow disease") being transmitted by liver extract, the U. S. Food and Drug Administration (FDA) still cautions against the use of any animal organ extract. It is not clear how the processing of liver extract affects the transmission of these organisms.

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