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Popular “wonder drugs” may cause cancer
1. Popular “Wonder Drugs” May Cause Cancer
The
New
York
Time
s
haile
d
them
as
“won
der
drug
s.”
Doct
ors
use
them as the first line of defense against heart attack, stroke, inflammation and whatever else
they can make sound dreadful and scary. Despite the spin, cholesterol lowering drugs (fibrates
and statins) are proving to be not so wonderful. As outlined in the book, Over-The-Counter
Natural Cures, by Shane Ellison, MS continuing research showed how these blockbusters failed
to prevent heart attack and stroke to any clinical significance. But that’s not the worst part.
There’s seems to be a “little” problem with cancer.
“My husband died last August 2005 of advanced liver cancer (hepatocellular carcinoma). He
tested negative for hepatitis and cirrhosis as the common causes of liver cancer. Nothing ever
was said about the lovastatin (mevacor) that he was on since 2003 when he had a mild heart
attack. A friend (non-M.D.)mentioned the statin probably caused the cancer.”
In their study published in
the Journal of the American
2. Medical Association (JAMA), Thomas B. Newman, M.D., MPH, and co-workers show that all
cholesterol-lowering drugs, both the early drugs known as fibrates (clofibrate, gemfibrozil) and
the newer drugs known as statins (Lipitor, Pravachol, Zocor), cause cancer in rodents at the
equivalent doses used by man.
Interestingly, these facts are not reflected in the highly coveted Physicians Desk Reference
(PDR) or by the pharmaceutically-compliant media. For instance, the PDR shows that cancer is a
side effect for fibric acid derivates and statins only when as much as ten times the
recommended human dose is used.
Dr. Gloria Troendle, deputy director for the Division of Metabolism and Endocrine Drug
Products for the FDA, noted that the cholesterol-lowering drug gemfibrozil belonged to a class
of drugs that has repeatedly been shown to increase death rates among users. Moreover, Dr.
Troendle stated that she does not believe the FDA has ever approved a drug for long-term use
that was as cancer causing at human doses as gemfibrozil.
Others shared these same concerns about gemfibrozil. In comments to the FDA, Elizabeth
Barbehenn, Ph.D., concluded: “fibrates must be considered as potential human carcinogens and
their carcinogenic potential should be part of the risk benefit equation for evaluating
gemfibrozil.”
Ignorin
g these
facts
and
despite
having
a
majorit
y vote
among
their
advisor
y
commi
ttee
against
approv
al, the
pharmaceutically- campaigned FDA-approved these drugs anyway! Specifically, when asked to
vote whether or not the cholesterol-lowering drug gemfibrozil should be approved for
prevention of heart disease, only 3 out of 9 voted in favor of approval. Unfortunately, these
3. votes are only “advisory” and – against the better judgment of the committee – the FDA
decided to approve gemfibrozil for human consumption.
Of course, the extrapolation of evidence of cancer from rodent to human is very uncertain. And
this is the argument of those who favor using cholesterol-lowering drugs. More likely, such an
extrapolation would only hold true if human studies also showed an increase in cancer rates. In
fact, that is what scientists are seeing.
Sheperd and colleagues for PROSPER noted in the Lancet that “…new cancer diagnoses were
more frequent on pravastatin *Pravachol+ than on placebo *those not taking the drug+.” Similar
findings were made in the CARE (Cholesterol And Recurrent Events) trial. Evidence from the
trial showed a significant increase (a 1500% relative risk increase) in breast cancer among
women taking Pravachol (a cholesterol-lowering drug made by Bristol-Myer Squib).
One mechanism by which cholesterol-lowering drugs may cause cancer has been identified.
Published in Nature Medicine, Dr. Michael Simons of Beth Israel Deaconess Medical Center in
Boston shows that statin drugs mimic a substance known as vascular endothelial growth factors
(VEGF). The biochemical VEGF promotes the growth of new blood vessels, a process known as
angiogenesis. While angiogenesis may help the growth of arteries, the benefit is quickly
negated by the potential for growth of cancer.
The British
Journal of Cancer reports that VEGF plays an important role in the spread of colorectal cancer.
Further, for those who already have tumors, VEGF and compounds that mimic VEGF
significantly diminish that person’s survival time.
The fact that cholesterol-lowering drugs can potentially cause cancer at doses commonly used
by humans will never be accepted as mainstream knowledge. Drug company-funded studies for
cholesterol-lowering drugs are conveniently short in nature, typically five years or less. It takes
4. decades for cancer to develop. Actually, even heavy smoking will not cause lung cancer within
five years. Yet it is a well-known fact that smoking leads to lung cancer. Therefore, as long as
statin drug trials last only five years, the fact that these “wonder drugs” aren't wonder drugs
will continue to fly below the radar.
By now, most people are starting to see the big picture – wonder drugs aren't that wonderful.
Stop fearing your cholesterol levels and starting taking charge of your own health.