Health Topic

Statins

If diet and exercise don't reduce your cholesterol levels, you may need to take medicine. Often, this medicine is a statin. Learn more about statins.

Reviewed Reviewed by a registered pharmacistGeneral information

Also called: HMG-CoA reductase inhibitors

Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.

About Statins

Cholesterol is a waxy, fat-like substance that's found in all the cells in your body. Your body needs some cholesterol to work properly. But if you have too much of it in your blood, it can stick to the walls of your arteries and narrow or even block them. This puts you at risk for coronary artery disease and other heart diseases.

Cholesterol is made by your liver. It travels through the blood on proteins called lipoproteins. One type of lipoprotein, LDL, is sometimes called the "bad" cholesterol. A high LDL level leads to a buildup of cholesterol in your arteries. Another type, HDL, is sometimes called the "good" cholesterol. It carries cholesterol from other parts of your body back to your liver. Then your liver removes the cholesterol from your body.

Statins are a type of cholesterol medicine. Your health care provider may prescribe them if you have high cholesterol and making lifestyle changes does not lower your cholesterol enough. Statins are the most common medicines used to treat high cholesterol.

Statins lower LDL cholesterol by slowing down how much cholesterol the liver makes. They also increase your liver's ability to remove LDL cholesterol that is already in the blood. This can slow the formation of plaques in your arteries. Studies have shown that statins lower the risk of heart attack and stroke in people with high LDL cholesterol.

Statins can lower your triglyceride level as well. Triglycerides are another type of fat in your blood that can raise the risk of heart disease. Statins may also increase your HDL cholesterol.

Statins usually don't cause side effects, but they may raise the risk of type 2 diabetes. However, this mainly happens in people already at high risk of diabetes, such as those who are overweight or have obesity, prediabetes, or metabolic syndrome.

Statins may also cause abnormal results on liver enzymes tests, but actual liver damage is very rare. Another uncommon side effect is muscle damage. In rare cases, this muscle damage can lead to muscle pain and kidney damage.

You should not take statins if you are pregnant or breastfeeding. They are also not recommended for people who have certain types of liver disease.

To safely take statins, you should:

  • Take your statin as prescribed. You should not stop taking this medicine on your own, since that can lead to a serious problem or, in rare cases, even cause death. Talk to your provider if you have any concerns about your statin or if you would like to stop or change to a different treatment.
  • Ask your provider which other medicines, supplements, or foods you should avoid. Some of these can interact with statins and cause serious side effects or make statins less effective. For example, grapefruit (fresh or as juice) affects how your liver breaks down some statins.
  • Tell your provider about any symptoms or side effects you are having. Sometimes, people report muscle problems while taking statins. If you start having muscle pain, your provider may order a blood test to look look for muscle damage. The pain may go away if you switch to a different statin. Muscle damage with statins is rare, and your muscles may heal when you switch to a different medicine.

It sits within Drug Therapy.

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Research on Statins

1,025 studies areregistered for this condition on ClinicalTrials.gov, the U.S. National Library of Medicine's public registry. A selection is below — the links go straight to the registry entry, not to a summary of ours.

What a registered study does and does not mean. Registration means a study exists and has been declared publicly. It says nothing about whether the treatment being tested works, is safe, or is available to you. Many studies find no benefit — that is what research is for. Never seek out an experimental treatment on the strength of a registry entry alone.

Research currently under way

Research already completed

Study data from ClinicalTrials.gov, a service of the U.S. National Library of Medicine. Retrieved 2026-07-30. Registry entries are supplied by study sponsors and investigators; ClinicalTrials.gov does not verify their scientific validity. PocketsInfo is not affiliated with, and not endorsed by, the NLM or the NIH.

Where to read more

Rather than paraphrase, we point you to the primary sources. Every link below is to a government health agency, a national institute or a recognised medical body — grouped by what you are trying to find out.

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Diagnosis and Tests

Related Issues

Statistics and Research

Clinical Trials

Medical subject headings

Clinicians and researchers index this subject under Hydroxymethylglutaryl-CoA Reductase Inhibitors. These are the terms to use when searching medical literature.

This page is built from the MedlinePlus health topic record for Statins, a service of the U.S. National Library of Medicine (NLM), National Institutes of Health. Information is from MedlinePlus.gov. PocketsInfo is not affiliated with, and is not endorsed by, the NLM or the NIH. Retrieved 30 July 2026.