There isn’t a universal list of pills that everyone should avoid because they “damage the kidneys.” Many medicines are safe when appropriately prescribed and dosed, but certain drugs can cause kidney injury or require dose adjustments—especially in people with kidney disease, dehydration, or older age.
8 medicines that deserve particular caution
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Ibuprofen — an NSAID that can reduce blood flow to the kidneys, particularly with dehydration, kidney disease, or prolonged/high-dose use.
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Naproxen — another NSAID with similar kidney risks.
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Diclofenac — an NSAID that can affect kidney function, especially with long-term use.
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Ketorolac — carries a relatively high risk of kidney injury and is generally intended only for short-term use.
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Certain antibiotics — especially aminoglycosides such as gentamicin, can be nephrotoxic and require careful dosing and monitoring.
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Some antiviral medicines — certain drugs can accumulate or injure the kidneys and need dose adjustments based on kidney function.
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Lithium — long-term use can affect kidney function and requires regular monitoring.
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Some proton-pump inhibitors (PPIs) — medicines such as omeprazole have been associated with kidney inflammation in uncommon cases.
Don’t stop a prescribed medicine simply because it appears on a list like this. The risk depends on the particular drug, dose, duration, hydration, other medicines, and your kidney function.
Also, NSAIDs are particularly important to discuss with a doctor/pharmacist if you have kidney disease, heart failure, high blood pressure, are dehydrated, or take medicines such as ACE inhibitors/ARBs or diuretics.
If you tell me the names of the pills you currently take, I can explain which ones may affect kidney function and what precautions are appropriate.
