Eight Pills That Can Harm Your Kidneys (and What to Know)
Your kidneys filter waste and help control fluid, minerals, and blood pressure. Some medicines are safe when used correctly but can stress or damage the kidneys, especially when taken in high doses, for long periods, or by people with existing kidney problems.
Here are eight categories of medicines that deserve caution:
1. Nonsteroidal anti-inflammatory drugs (NSAIDs)
Examples include Ibuprofen and Naproxen.
- Commonly used for pain, inflammation, and fever.
- Can reduce blood flow to the kidneys and may cause kidney injury, especially with dehydration, older age, or kidney disease.
2. Certain antibiotics
Some antibiotics can affect kidney function, particularly in people who are vulnerable.
- Doctors may adjust doses based on kidney function.
- Never stop prescribed antibiotics without medical advice.
3. Proton pump inhibitors (PPIs)
Examples include Omeprazole and similar acid-reducing medicines.
- Long-term use has been associated in some studies with kidney-related risks.
- They are often appropriate when medically needed, but unnecessary long-term use should be reviewed.
4. Diuretics (“water pills”)
Used for high blood pressure and fluid retention.
- They can affect kidney function if they cause excessive fluid loss or electrolyte changes.
- Regular monitoring may be needed.
5. Some blood pressure medicines
Certain medicines that affect the kidney’s blood flow can require monitoring, especially when starting treatment or changing doses.
6. Some cholesterol-lowering medicines
Certain medications used to lower cholesterol can rarely contribute to muscle breakdown, which may indirectly harm the kidneys in severe cases.
7. Herbal supplements and “natural” remedies
“Natural” does not always mean kidney-safe.
- Some supplements contain ingredients that may harm kidneys or interact with medications.
- Quality and dosage can vary.
8. High-dose vitamin or mineral supplements
Excess amounts of certain supplements—such as high doses of vitamin C or minerals like calcium—may increase kidney risks in susceptible people
