Tamoxifen: Friend or Foe

Tuesday, August 14, 2012 by: Dr. Carolyn Dean
Tags: Tamoxifen, breast cancer, toxicity

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(NaturalNews) I was recently asked by a consultation client about the advisability of taking Tamoxifen after breast cancer surgery to prevent recurrence.

I knew that Tamoxifen was declared a carcinogen by the World Health Organization back in the late 1990s but I doubled checked and found the NIH "Report on Carcinogens" - 9th edition, 2000.

Here is what the NIH report says:

"Tamoxifen is listed in the 9th Report as a "known human carcinogen" based on evidence from studies in humans that indicate tamoxifen increases the risk of uterine cancer in women. While there is clear evidence that tamoxifen causes uterine cancer in women, there is also conclusive evidence that tamoxifen therapy reduces the risk of cancer in the opposite breast in women with a previous diagnosis of breast cancer, and reduces the incidence of breast cancer in women at increased risk for this disease. Tamoxifen has been approved by the FDA for treatment of breast cancer, for reducing the incidence of contralateral breast cancer in women with a previous diagnosis of breast cancer, and for decreasing the risk of breast cancer in women who have a high risk of getting breast cancer. At the time of this drug's approval for reducing the risk of breast cancer, it was known that women who take tamoxifen have an increased risk of getting uterine cancer. FDA approved tamoxifen for use in women with a high risk of breast cancer because the benefit of decreasing the risk of breast cancer outweighed the risks of taking tamoxifen, including the risk of getting uterine cancer."

I don't have to give you an exhaustive list of studies showing that Tamoxifen causes cancer. That's been proven beyond a shadow of a doubt and the proponents of using carcinogen drugs don't try to hide the fact. (1) Their rationale now is that the so-called benefits of the drug outweigh the risks.

Of course, what they remain stubbornly blind to is the alternative medicine resources that can help prevent and treat cancer safely, including the understanding that cancer may be a reaction of the body to a massive stress. Instead allopathic medicine wants to diagnose breast cancer earlier and earlier in order to give Tamoxifen as a preventive breast cancer treatment.

For example, DCIS (ductal carcinoma in situ) is said to be a very early form of breast cancer. It's described as being pre-cancerous, pre-invasive or non-invasive. So it's not even cancer. It's usually diagnosed on a screening mammogram and shows up as microcalcifications in breast tissue. However, microcalcifications are very common in the breasts. According to a doctor friend of mine who specializes in ultrasound and thermography diagnosis, the amount of calcification she sees in her clients is escalating year by year.(2) This microcalcification is likely due to the overuse of calcium supplements, calcium fortification and the high doses of Vitamin D being prescribed without the proper balance of magnesium.

According to the Cancer Prevention Institute of California (3) after a suspicious mammogram comes a magnification mammogram, which offers a closer look at the area of calcification. Now the patient is extremely concerned and is told she needs a biopsy to confirm diagnosis. The shock of a possible cancer diagnosis can itself cause illness where none existed in the first place.

If the pathologist, who looks at the slides, sees any abnormal cells at the margins of the biopsy, he/she will recommend further treatment. However, wouldn't the presence of calcium deposits in breast tissue make cells look abnormal?

The first line of allopathic medical treatment is a lumpectomy. But if the lumpectomy is done near the site of the biopsy, which it usually is, aren't the cells in the surrounding tissue going to look abnormal due to the previous surgery?

Some surgeons will recommend lumpectomy and post-operative radiation therapy. Others will offer mastectomy, but all of them will recommend Tamoxifen.

I read all the above FAQs about treatment for DCIS on the Cancer Prevention Institute of California website and I finally came upon this statement:

"In numerous recent studies, regardless of treatment, the long-term survival rate for women with DCIS is nearly 100%."

To the above statement I would add...if they survive the biopsy, lumpectomy, mastectomy, radiation and Tamoxifen!

I'm not going into the treatment of DCIS here except to say that it may be caused by excess calcium and not enough magnesium; it's perpetuated and aggravated by cancer treatments; and unnecessarily taking Tamoxifen can actually cause other forms of cancer.

1. Understanding the genotoxicity of tamoxifen? Carcinogenesis. 2000. Vol 22: 6. p. 839-849.
2. Universal Medical Imaging, Dr. Galina Migalko:
3. Cancer Prevention Institute of California:

About the author:
About the author:
Dr. Carolyn Dean is The Doctor of the Future. She is a medical doctor and naturopathic doctor in the forefront of the natural medicine revolution since 1979.
She is working on two patents on novel health products such as RnA Drops, ReMag, ReLyte, ReNew and ReAline at
Dr. Dean is the author/coauthor of over 30 health books (print and eBooks) and 106 Kindle books including The Magnesium Miracle, Death by Modern Medicine, IBS for Dummies, IBS Cookbook for Dummies, The Yeast Connection and Women's Health, Future Health Now Encyclopedia, Death by Modern Medicine, Everything Alzheimers, and Hormone Balance.
She is on the Medical Advisory Board of the non-profit educational site - Nutritional Magnesium Association ( Her magnesium recommendations can be found under Resources on her website
Dr. Dean has a free online newsletter and a valuable online 2-year wellness program called Completement Now! at She also runs a busy telephone consulting practice and has a weekly radio show Mondays at 4pm PST on Find out more at,, and

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