Some commonly used medicines and supplements may affect kidney function in certain people. Learn which ones can pose a risk, what warning signs to watch for, and when you should speak with your doctor.
Taking This Could Be Affecting Your Kidneys — Here’s When to Talk to Your Doctor
Many people take medicines, pain relievers, or supplements regularly without realizing that some of them can put additional stress on the kidneys. While most medications are safe when used correctly, certain drugs can affect kidney function, especially when taken frequently, at high doses, or by people who already have kidney problems.
The kidneys play an essential role in filtering waste and excess fluid from the blood. Because many medications are processed or removed through the kidneys, some drugs can potentially interfere with kidney function.
Which Medicines May Affect the Kidneys?
Certain pain relievers, particularly nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen and naproxen, can reduce blood flow to the kidneys and may increase the risk of kidney problems in susceptible people.
Some prescription medications can also require careful dosing when kidney function is reduced. Certain antibiotics, blood-pressure medicines, and other drugs may need monitoring depending on a person’s health and kidney function.
Over-the-counter products and herbal supplements should not automatically be considered harmless simply because they are available without a prescription.
Who May Be at Greater Risk?
The risk can be higher in people who:
- Already have kidney disease
- Are older adults
- Have diabetes or high blood pressure
- Are dehydrated
- Take several medications at the same time
- Frequently use certain pain relievers
- Have heart or liver problems
This does not mean you should stop taking a prescribed medication. Stopping some medicines suddenly can be dangerous.
Warning Signs You Shouldn’t Ignore
Kidney problems may sometimes develop without obvious symptoms. However, possible warning signs can include swelling in the legs or ankles, changes in urination, unusual fatigue, nausea, or persistent weakness.
Severe symptoms such as very little urine, significant swelling, shortness of breath, confusion, or severe illness require prompt medical attention.
What Should You Do?
If you regularly take medication and are concerned about your kidneys, talk with your doctor or pharmacist. They can review your medications and determine whether kidney-function testing or a dosage adjustment is appropriate.
Never stop a prescribed medicine on your own because of a social-media post or online article. The safest approach is to discuss your individual medications, doses, and health conditions with a qualified healthcare professional.
Your kidneys may be working quietly every day—but that doesn’t mean they should be overlooked.