Heart Health Study Compares Two Widely Used Statins

Statins are widely prescribed drugs used to help protect the heart.

They work by reducing LDL cholesterol, often referred to as “bad” cholesterol. When LDL builds up in artery walls, it can create fatty deposits that gradually narrow blood vessels or block them entirely, raising the chances of heart attack and stroke.

Rosuvastatin and atorvastatin are two commonly used statins. Both are frequently given to people with coronary artery disease, a condition in which the arteries supplying blood to the heart become narrowed.

Researchers set out to learn whether either drug offers stronger long-term protection.

The analysis drew on data from the LODESTAR clinical trial, which enrolled about 4,400 adults with coronary artery disease. Participants were randomly assigned to receive rosuvastatin or atorvastatin and were followed for roughly three years. The team compared major heart and blood vessel complications between the two groups.

Those complications included heart attacks, strokes and death. The researchers also examined procedures used to reopen narrowed or blocked arteries, such as stent placement. In the end, there was no clear difference between the two medicines in the risk of these major events.

Still, there were some differences between the drugs. People who took rosuvastatin had lower LDL cholesterol levels during the study than those who took atorvastatin. Since high LDL is a major driver of artery disease, lowering it remains an important treatment goal.

Rosuvastatin, however, was linked to a higher rate of some unwanted effects. Participants in that group were more likely to develop type 2 diabetes requiring medication. They were also more likely to undergo cataract surgery than those taking atorvastatin.

Cataracts occur when the eye’s clear lens becomes cloudy, which can blur vision or reduce sharpness. They are common in older adults and can usually be treated successfully with surgery. The study does not mean rosuvastatin will cause these problems in every person who uses it.

The findings suggest that choosing a statin involves more than simply selecting the medicine that lowers LDL the most. Doctors may also weigh a patient’s diabetes risk, other health conditions, potential side effects and treatment response. For many people with coronary artery disease, either drug may offer effective heart protection.

There are also limits to the research. All participants were Asian, so the results may not apply equally to every ethnic group. Follow-up lasted about three years, meaning longer studies are needed to see whether differences between the drugs appear over a longer period.

The study was published in The BMJ. It adds useful evidence on the benefits and risks of two commonly prescribed statins and may help doctors make more personalized treatment decisions. People already taking either medicine should speak with their doctor before making any changes.

Medication works best as part of a broader heart-healthy lifestyle. Regular exercise, a balanced diet, avoiding smoking, maintaining a healthy weight and controlling blood pressure can also lower cardiovascular risk. Together with cholesterol-lowering treatment, these steps can help protect the heart and blood vessels.

If you are interested in this topic, please read studies about Hidden Heart Damage May Greatly Raise Heart Failure Risk in People with Prediabetes, and This Type of Cough Might Be a Hidden Sign of Heart Failure.

For more information, please see recent studies about AI Could Help Detect Hidden Heart Failure Earlier, and A Hidden Link Between Heart Failure and Irregular Heartbeat.