Cholesterol is a fatty, wax-like substance that your body needs to build healthy cells and make certain hormones.
Your liver makes most of the cholesterol you need, and the rest comes from food. Even though cholesterol is important, having too much in your blood can become dangerous over time.
Extra cholesterol can stick to the walls of your arteries and slowly form hard deposits called plaque. This makes it harder for blood to flow through the body and increases the chance of a heart attack or stroke. Because high cholesterol usually causes no warning signs, many people do not know they have it until a serious health problem happens.
Doctors often recommend healthy eating, regular exercise, stopping smoking, and keeping a healthy weight as the first steps to lower cholesterol.
However, for many people these changes are not enough, especially if cholesterol levels are very high or if they already have heart disease. In these cases, cholesterol-lowering medicines can greatly reduce the risk of future health problems.
The most widely used cholesterol medicines are called statins. These medicines slow down the liver’s production of cholesterol, which lowers the amount of low-density lipoprotein (LDL), often known as ‘bad’ cholesterol. Lower LDL levels mean there is less cholesterol available to build plaque inside arteries.
Research has shown that statins are very effective. A large study published in The Lancet found that people taking statins had about a 25% lower risk of heart attacks and strokes than those who did not take them. Statins help both people who already have heart disease and those who have a high risk of developing it.
Another important study, published in the Journal of the American Medical Association, found that statins also reduced heart problems in people who had high cholesterol but no previous history of heart disease. This shows that the medicines can help prevent serious illness before it starts.
Some people need even more help lowering cholesterol. Doctors may prescribe ezetimibe, a medicine that works by reducing the amount of cholesterol absorbed from food in the small intestine instead of blocking cholesterol production in the liver. It is often used together with a statin.
A study published in The New England Journal of Medicine found that combining ezetimibe with a statin lowered LDL cholesterol more than a statin alone. The combination also reduced the risk of heart-related problems, making it a useful option for people who need stronger treatment.
Not everyone can take statins because some people develop side effects such as muscle pain. For these patients, doctors may recommend newer medicines called PCSK9 inhibitors. These medicines help the liver remove more LDL cholesterol from the blood and are usually given by injection.
Studies published in the journal Circulation have shown that PCSK9 inhibitors can greatly reduce LDL cholesterol and lower the risk of heart attacks. Although these medicines are usually reserved for people at very high risk or those who cannot take statins, they have become an important addition to cholesterol treatment.
Like all medicines, cholesterol drugs can have side effects. Some people experience muscle aches or mild stomach problems, and serious side effects such as liver damage are uncommon. Doctors usually monitor patients with regular check-ups and blood tests to make sure treatment remains safe.
Medicines work best when combined with healthy daily habits. Eating more fruits, vegetables, whole grains, beans, fish, and other healthy foods can improve cholesterol levels. Regular physical activity and avoiding tobacco also play a major role in protecting the heart.
Treatment is different for every person. Doctors look at cholesterol levels, age, family history, diabetes, blood pressure, and other health conditions before choosing the best medicine. It is important to keep taking the medicine as directed unless your doctor advises you to stop.
Overall, cholesterol-lowering medicines have helped millions of people reduce their risk of heart disease and stroke. They are not a replacement for a healthy lifestyle, but they can provide life-saving protection for people who need them.
The research published in The Lancet, the Journal of the American Medical Association, The New England Journal of Medicine, and Circulation continues to support their important role in modern medicine.
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