Eight Pills You Shouldn’t Take Carelessly Because They Can Harm Your Kidneys

Your kidneys filter many medicines from your body. Certain medications can reduce blood flow to the kidneys, cause kidney injury, or build up in the body when kidney function is already reduced.

Here are 8 medicines or medicine groups that deserve extra caution:

1. Ibuprofen – Commonly used for pain and fever. High doses or frequent use can damage the kidneys, especially when you are dehydrated.
2. Naproxen – Another NSAID painkiller that can reduce blood flow to the kidneys and increase the risk of kidney injury.
3. Diclofenac – An NSAID used for pain and inflammation. Long-term or high-dose use can be harmful to kidney function.
4. Indomethacin – Another NSAID that requires caution, particularly in people with existing kidney disease.
5. Meloxicam – Often prescribed for arthritis and other inflammatory pain. It belongs to the NSAID family and may harm the kidneys, especially with prolonged use.
6. Celecoxib – A COX-2 inhibitor used for pain and inflammation. It can also affect kidney function.
7. Lithium – Used for certain psychiatric conditions. Long-term treatment can affect kidney function, so regular medical monitoring is important.
8. Certain antibiotics and antivirals – Some infection medicines can build up when kidney function is reduced, while others can directly cause kidney injury. Doses may need to be adjusted according to kidney function.

⚠️ Important

This does not mean you should suddenly stop a prescribed medicine. Some of these drugs are extremely useful and can be safely prescribed when the dose and situation are appropriate. The risk depends on the medicine, dose, duration, hydration, and your kidney function.

If you have kidney disease, are older, are dehydrated, or take several medicines, ask your doctor or pharmacist before taking painkillers or other over-the-counter medicines.

Your kidneys may not give obvious warning signs until significant damage has occurred—so medication safety matters.

This information is for education and is not a substitute for medical advice.