Atorvastatin (Lipitor), rosuvastatin (Crestor), and other cholesterol-lowering statin drugs can be affected by taking supplements and can affect your ability to absorb certain vitamins and minerals. Certain herbal supplements, such as St. John's wort
, may decrease blood levels of some statin drugs, and when taken with atorvastatin, may actually result in increased cholesterol levels. Certain forms of magnesium
may also decrease blood levels of statin drugs -- particularly Crestor. Red yeast rice
, which contains a naturally occurring statin, should not be combined with prescription statin drugs without medical supervision.
should be avoided or used with caution when taking certain statin drugs, such as atorvastatin (Lipitor), lovastatin (Mevacor) and rosuvastatin (Crestor).
While high doses of niacin may help to lower cholesterol, studies show that if you already take a statin drug, adding high-dose niacin does not appear to provide additional benefit and may carry serious risks
. Nevertheless, some physicians believe taking niacin in addition to statin medication may be helpful for certain people; however do not try this combination without consulting your physician.
Some fruit juices can also be a problem, particularly grapefruit juice, which impairs the body's normal breakdown of certain statins, allowing them to build up to potentially excessive levels in the blood. Since the effects of grapefruit juice may last as long as 3 days, it should be avoided if you are taking atorvastatin (Lipitor), lovastatin (Mevacor, Altoprev) or simvastatin (Zocor). However, some other statins do not seem to be affected by grapefruit juice, including pravastatin (Pravachol), fluvastatin (Lescol) and rosuvastatin (Crestor).
Although green tea
can help lower cholesterol, it can also decrease absorption of some, but not all, statin drugs
. To play it safe, it may be best to take statins at least a couple of hours before consuming a green tea supplement or beverage.
On the other hand, CoQ10
and fish oil
may offer particular benefits to people on statin drugs.
These interactions are explained in the Statin Drugs
article, which is part of the extensive Drug Interactions
section of our website (where you can look up interaction for other drugs you may be taking), and in other reports (linked to above) on ConsumerLab.com.