There isn’t a universal list of eight medicines that everyone should avoid. Many medicines can be safe when appropriately prescribed and dosed, but some can harm the kidneys—particularly at high doses, with prolonged use, during dehydration, or in people who already have kidney disease.
Examples worth discussing with a clinician or pharmacist include:
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Ibuprofen — an NSAID that can reduce blood flow to the kidneys, especially with dehydration or kidney disease.
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Naproxen — another NSAID with similar kidney risks.
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Diclofenac — an NSAID that can affect kidney function, particularly with prolonged use.
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Ketorolac — has significant kidney-related risks and is generally intended only for short-term use.
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High-dose aspirin — kidney effects become more concerning at higher doses and in people with impaired kidney function.
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Certain antibiotics — for example, aminoglycosides such as gentamicin can be nephrotoxic and require careful dosing and monitoring.
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Some antiviral medicines — certain drugs can injure the kidneys or require dose adjustment when kidney function is reduced.
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Some chemotherapy medicines — several can cause kidney injury and therefore require medical monitoring.
Don’t stop a prescribed medicine on your own. The actual risk depends on the specific drug, dose, duration, kidney function, age, hydration, and other medicines you’re taking.
If you give me the names of the pills you currently take, I can explain which ones can affect the kidneys and what warning signs to watch for.
