Statins are among the most commonly used medicines in the world. Millions of people take them every day to lower cholesterol and protect their heart.
One of the most widely used statins is rosuvastatin, a drug known for its strong ability to reduce cholesterol levels and lower the risk of heart attacks and strokes. However, new research suggests that this popular medication may come with important risks for the kidneys, especially when used at higher doses.
The study, carried out by researchers at Johns Hopkins, looked closely at how rosuvastatin affects kidney health in real-life patients. This question is not entirely new.
When rosuvastatin was first reviewed for approval by the U.S. Food and Drug Administration, early studies showed possible signs of kidney problems. Some patients developed hematuria, which means blood in the urine, and proteinuria, which means protein leaking into the urine.
Both of these are signs that the kidneys may not be working properly. However, after the drug was approved, there were not many large studies to follow up on these concerns in everyday clinical settings.
To better understand the risks, the researchers examined electronic health records from a very large group of people. The study included more than 900,000 patients.
Among them, over 150,000 people had just started taking rosuvastatin, while nearly 800,000 people had started taking another common statin called atorvastatin. The researchers followed these patients for three years to see how their kidney health changed over time.
The findings were clear and important. Among people taking rosuvastatin, about 2.9% developed blood in their urine, and 1.0% developed protein in their urine.
When compared with those taking atorvastatin, people using rosuvastatin had an 8% higher risk of hematuria and a 17% higher risk of proteinuria. In addition, they had a 15% higher risk of serious kidney failure that required treatments such as dialysis or a kidney transplant.
One of the most concerning findings was that the risks increased with higher doses of rosuvastatin. This means that people taking larger amounts of the drug were more likely to experience kidney problems.
Even more worrying, the study found that many patients who already had poor kidney function were still being given high doses of rosuvastatin. In fact, nearly half of the patients with advanced kidney disease were prescribed doses higher than what the FDA recommends for people with kidney problems.
At the same time, the study showed that rosuvastatin and atorvastatin were equally effective in protecting heart health. Both drugs helped lower cholesterol and reduce the risk of heart disease in similar ways.
This raises an important question: if two drugs offer the same heart benefits, but one carries a higher risk for the kidneys, how should doctors choose between them?
The researchers suggest that doctors should be more careful when prescribing rosuvastatin, especially at high doses or for patients who already have kidney disease.
They recommend that both doctors and patients carefully consider the balance between benefits and risks before deciding on treatment. Monitoring kidney function during treatment may also be important to catch any problems early.
This study, led by Jung-im Shin and published in the Journal of the American Society of Nephrology, highlights the need for more attention to kidney health in people taking statins. It also shows how important it is to use the right dose for each patient, rather than assuming that higher doses are always better.
For patients, this does not mean they should stop taking their medication. Statins are still very effective and important drugs for preventing heart disease. Instead, the message is to have open discussions with doctors, understand the possible risks, and ensure that treatment is tailored to individual health needs.
As more research is done, doctors may develop clearer guidelines on how to use these drugs safely. For now, this study serves as an important reminder that even widely used medicines can have side effects that need careful attention, especially when used over long periods of time.
If you care about heart disease, please read studies that herbal supplements could harm your heart rhythm, and how eating eggs can help reduce heart disease risk.
For more health information, please see recent studies that apple juice could benefit your heart health, and results showing yogurt may help lower the death risks in heart disease.
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