Medicines that reduce stomach acid are used by millions of people every day. These drugs are called proton pump inhibitors, or PPIs.
They are often taken to ease heartburn, acid reflux, and a long-term condition known as GERD, where acid from the stomach moves up into the food pipe.
Many people know these medicines by brand names such as Prilosec, Nexium, and Prevacid. Because they work quickly and are easy to buy, many people believe they are very safe, even when used for a long time.
In the United States, about one out of every ten adults takes a PPI regularly. Some people take them for weeks, months, or even years without much concern. These drugs lower the amount of acid made in the stomach, which helps reduce pain and protects the lining of the food pipe.
However, stomach acid also plays an important role in digestion and in protecting the body from harmful bacteria. This means that changing acid levels for a long time may have effects that are not always obvious at first.
A new study from the University of California San Diego has raised concerns about how these drugs may affect the kidneys. The kidneys are very important organs. They clean the blood, remove waste, and help control fluid and mineral levels in the body. When the kidneys are damaged, the effects can be serious and sometimes life-threatening.
To better understand the risks, researchers studied data from the FDA Adverse Event Reporting System. This is a very large database that collects reports about side effects from medicines.
It includes information from doctors, patients, and drug companies, and contains more than 10 million reports. To make their results more reliable, the scientists focused only on people who were taking PPIs and no other medicines. This group included about 43,000 individuals.
The researchers then compared these people with another group of about 8,000 individuals who were taking a different type of acid-reducing drug called H2 blockers. These include medicines like Pepcid and Zantac. H2 blockers work in a different way and are often thought to be safer for long-term use.
The results were surprising and worrying. People who took only PPIs were much more likely to report serious kidney problems than those who took H2 blockers. The study found that PPI users were over 28 times more likely to report chronic kidney disease.
This is a condition that develops slowly and may not show clear symptoms until the kidneys are badly damaged. They were also over 4 times more likely to suffer from acute kidney injury, which happens suddenly and can require urgent medical care.
Even more concerning, PPI users were over 35 times more likely to develop end-stage kidney failure. This is the most severe form of kidney disease, where the kidneys stop working almost completely.
People at this stage often need dialysis, which is a machine that cleans the blood, or a kidney transplant to survive. In addition, the study found that PPI users were 8 times more likely to have other types of kidney damage.
The researchers also noticed problems with electrolyte levels in people taking PPIs. Electrolytes are minerals in the body, such as sodium and potassium, that help control important functions like heartbeat, nerve signals, and muscle movement. When these levels are not balanced, it can lead to serious health issues.
Importantly, these risks were seen with all the PPI drugs studied. This suggests that the problem is not linked to one specific brand, but to the way these drugs work as a group.
While PPIs can greatly improve comfort and quality of life for people with severe acid problems, the study shows that long-term use should be approached with care. Doctors may need to monitor kidney function in patients who use these medicines for a long time, especially if they already have risk factors such as diabetes or high blood pressure.
Patients may also consider using the lowest effective dose for the shortest possible time. In some cases, simple lifestyle changes may help reduce the need for medication. Eating smaller meals, avoiding spicy or acidic foods, maintaining a healthy weight, and quitting smoking can all help manage acid reflux.
This is not the first time scientists have raised concerns about PPIs. In 2017, another study from the same research team suggested a possible link between these drugs and liver problems.
The new findings were published in the journal Scientific Reports by researcher Ruben Abagyan and his team. Their work highlights an important message. Even medicines that seem safe and are widely used can have hidden risks if taken for too long.
As more research is done, it is important for patients and doctors to talk openly about the benefits and risks of these drugs. Making informed choices can help protect long-term health, especially when it comes to vital organs like the kidneys.
If you care about kidney health, please read studies about pesticide linked to chronic kidney disease, and this drug may prevent kidney failure in people with diabetes.
For more health information, please see recent studies about drug duo that may treat kidney failure, and results showing these vegetables may protect against kidney damage.
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