Diabetes and Statins

Once upon a time, you could watch television for an evening or read an entire magazine without seeing a commercial or ad for a statin drug. But the ubiquity of these heavily promoted cholesterol-lowering medications has had a major payoff: Doctors say the widespread use of statins has contributed heavily to an overall drop in total cholesterol and LDL cholesterol among adults in the United States since the drugs were introduced in the 1990s. Studies show that statins slash the risk of heart attack by about 30 percent.

Officially known as HMG CoA reductase inhibitors, statins knock out an enzyme the liver needs to make cholesterol. They also encourage the liver to reabsorb more LDL cholesterol, which we all know is the "bad" kind. Studies show that these drugs can decrease LDL cholesterol up to 36 percent in diabetes patients. Sharp-eyed readers may be thinking: Why should I care, since people with diabetes don't necessarily have super-high LDL in the first place?

Maybe not, but people with diabetes do have high concentrations of small, dense LDL cholesterol particles, which are more likely to plug up arteries. Statins wipe out all LDL particles, including the dangerous kind.

And that's not all. Statins also lower triglycerides, though not as effectively as they decrease LDL cholesterol. The drugs also cause a slight uptick in HDL cholesterol, and that's good news, too. In fact, scientists from other disciplines are studying whether statins fight other diseases, including various forms of cancer.

Doctors who treat heart disease are so grateful for the lives saved by statins that they sometimes suggest adding the drugs to our nation's drinking water. And they're only half kidding. Unfortunately, while these cholesterol crushers are considered quite safe, they carry a few risks. Some are mild and short term, such as gastrointestinal problems, headaches, and a rash. However, statins may also irritate the liver, so your doctor will keep tabs on it with occasional blood tests.

More controversially, statins have been linked to several conditions, particularly myositis (swelling of the muscles) and rhabdomyolysis ( a breakdown of muscle fibers, which are then released into the circulation). Although they are rarely fatal, these conditions can cause muscle pain, cramps, and weakness. However, studies suggest that these problems are not very common. A 2003 survey in the Journal of the American Medical Association estimated that one to five percent of patients who take statins develop some form of muscle pain or weakness. What's more, the problem may be triggered by taking some other medication (such as fibrates and niacin; see below) with a statin drug. Regardless, the symptoms fade once you stop taking a statin.

Another type of cholesterol-lowering drug -- fibrates -- is discussed next.

For more information on diabetes, and its effect on cholesterol and the heart, try the following links:

  • Diabetes and Heart Disease explains the relationship between these two conditions.
  • Diabetes Symptoms covers the diverse signs of the disease, from increased thirst and hunger to sudden weight loss.
  • To learn more about diabetes in general, including diagnosis, causes, symptoms, and treatment, visit our main Diabetes page.
  • For more information on cholesterol and its effect on your health, read How Cholesterol Works.

This information is solely for informational purposes. IT IS NOT INTENDED TO PROVIDE MEDICAL ADVICE. Neither the Editors of Consumer Guide (R), Publications International, Ltd., the author nor publisher take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading or following the information contained in this information. The publication of this information does not constitute the practice of medicine, and this information does not replace the advice of your physician or other health care provider. Before undertaking any course of treatment, the reader must seek the advice of their physician or other health care provider.