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Negative Side Effects of Red Yeast Rice

Red yeast rice has long been a part of traditional Chinese medicine. It is also used in many parts of Asia as a dietary staple. Red yeast rice has a number of beneficial compounds. However, it is one of those compounds that has led to a legal debate over whether it is a supplement or a drug. That compound, monacolin K, has been shown to have negative side-effects.

  1. Definition

    • Red yeast rice is rice that has been fermented by red yeast (Monascus purpureus); it is grown on white rice. It has been used in traditional Chinese medicine since 800 A.D., primarily for heart problems. Red yeast rice contains several compounds that are reportedly capable of lowering blood cholesterol levels. In its powdered form it is also used as food.

    Is it a Drug or a Supplement?

    • According to the Mayo Clinic, red yeast rice contains a number of compounds that can lower cholesterol.A particular compound known as monacolin K is the same ingredient found in the prescription drug, lovastatin (Mevacor).

    Uses

    • Red yeast rice is used to lower your total blood cholesterol levels, your low-density lipoprotein/LDL ("bad cholesterol") level and your triglyceride level. Primary evidence also indicates that it may offer cardiovascular benefits, improve blood flow, and help diabetics.

    Negative Side-Effects

    • Side-effects include mild headaches, abdominal discomfort, muscle pain, asthma, heartburn, gas, bloating and kidney problems. Like lovastatin, red yeast rice can interacts with other drugs to cause muscle breakdown, and kidney damage. Taken with aspirin or anticoagulants, red yeast rice may increase the risk of bleeding.

    Warning

    • The U. S. Food and Drug Administration does not strictly regulate herbs and supplements. If you are taking any other drugs, herbs, or supplements, consult a doctor before ingesting red yeast rice.

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