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Page 138
digitoxin, appears to possess strong cancer-inhibiting effects. Studies with both human and animal models have shown it to inhibit certain tumor cell lines, including both ER-positive and ER-negative breast cancer. One possible mechanism for this might be the interaction between cardiac glycosides and the estrogen-receptor target site Na/K ATPase. This, by the way, is the target site for tamoxifen, a currently popular breast cancer drug. Digitoxin inhibits cancer growth in a dose-dependent manner, but the therapeutic dose is far below a potentially toxic dose. Only skilled herbalists or doctors trained in the use of this plant and the constitutional uses of cardiac glycosides should use digitalis because it can be toxic. 77
Fringe Tree (Chionanthus virginicus)
This herb, seldom used today, has much value for the liver and other digestive organs. It has no cancer-inhibiting effects that we are aware of, but it has a specific use in cancer therapies. It is indicated when the patient is suffering from jaundice, acute dyspepsia, acute or chronic inflammation of the liver, or irritable liver. It is very helpful for people with cancer, particularly those with obstructions in the digestive tract, bile ducts, or tumors of the liver.
Ginkgo (Ginkgo biloba)
Many people would not think of using this popular herb for any kind of cancer protocol. Ginkgo is recognized primarily for restoring brain health by dilating peripheral blood vessels, increasing cerebral vascular circulation, and oxygen utilization. But ginkgo is also a free-radical scavenger that stimulates the immune system, is anti-inflammatory, inhibits histamine release, and is fibrinolytic. Ginkgo extract enhances the cytotoxic effects of radiation while reducing the overall toxic effects.78
Goldenseal (Hydrastis)
Indications for use of goldenseal are a broad, indented, and lightly coated tongue and evidence of dyspepsia, constipation, flatulence, and distress in the bowels. Goldenseal is also used to treat breast and stomach cancers.

 
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