The claim “Eight pills you shouldn’t take because they damage your kidneys” is often used as a scare headline. The reality is that some medications can affect kidney function, especially at high doses, when combined with other drugs, or in people who already have kidney problems. Many of these medicines are safe when used correctly and monitored by a healthcare professional.
Examples of medicines that can potentially harm the kidneys include:
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
- Examples: ibuprofen, naproxen, diclofenac
- Long-term or high-dose use can reduce blood flow to the kidneys and may cause kidney injury, especially in older adults or people with kidney disease.
- Certain antibiotics
- Some antibiotics (especially certain aminoglycosides) can be harmful to kidneys in some situations.
- Doctors often monitor kidney function and adjust doses when needed.
- Some blood pressure medicines
- ACE inhibitors and ARBs can change kidney blood flow.
- They are often kidney-protective in conditions like diabetes-related kidney disease, but kidney function and potassium levels may need monitoring.
- Diuretics (“water pills”)
- These can affect fluid balance and electrolytes.
- Problems are more likely with dehydration or incorrect dosing.
- Certain heart medications
- Some medicines require kidney-based dose adjustments or monitoring.
- Some acid-reducing medicines
- Long-term use of certain proton pump inhibitors (PPIs) has been associated in studies with kidney problems in some people, though the absolute risk is generally low.
- Certain chemotherapy or immune-suppressing medicines
- Some can affect kidney function and require close medical supervision.
- High-dose or unnecessary supplements
- Some herbal products and excessive doses of certain supplements may stress the kidneys or contain unlisted ingredients.
People who should be especially cautious
- Those with chronic kidney disease
- Older adults
- People with diabetes or high blood pressure
- People taking multiple medications
- Those who become dehydrated (for example, from vomiting, diarrhea, or severe illness)
Protecting your kidneys
- Avoid taking painkillers regularly without medical advice.
- Stay hydrated, especially during illness or heat exposure.
- Tell your healthcare provider about all medicines, vitamins, and supplements you take.
- Have kidney function checked if you are at risk.
Do not stop prescribed medication suddenly because of a general warning list. If you tell me the specific pills you are concerned about, I can explain their kidney risks and what monitoring is usually recommended.
