Are there antibiotics that can harm the kidneys?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Yes, certain antibiotics can damage the kidneys, a condition known as nephrotoxicity. Antibiotics most commonly linked to kidney injury include aminoglycosides (like gentamicin), vancomycin, sulfonamides, and some cephalosporins. Risk factors include high doses, prolonged use, dehydration, older age, and pre-existing kidney disease.

Symptoms of antibiotic-related kidney damage may include reduced urine output, swelling in the legs or ankles, fatigue, nausea, and confusion. Early detection is critical, as stopping the medication promptly can often reverse the damage.

If you're currently taking antibiotics and notice any concerning symptoms—or if you're worried about your kidney health—it's important to act quickly. Guessing or waiting can lead to worsening outcomes. Take a free, instant, online symptom check to better understand what's going on and get personalized guidance on your next steps. It only takes a few minutes and could help you make informed decisions about your health.

Reviewed for medical accuracy: 07/15/2026

Important Next Steps

Learn if antibiotics are harming your kidneys Discover likely causes of kidney-related symptoms See if kidney symptoms need urgent care Find OTC relief for kidney discomfort Find a kidney specialist near you Understand medically valid home remedies for kidneys Find out if it could be kidney damage

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Explanation

Antibiotics are important for treating infections, but some can harm the kidneys, a condition known as nephrotoxicity. This damage can happen because the kidneys filter the blood and remove waste, so they are often exposed to high levels of these drugs.

Common Nephrotoxic Antibiotics

Aminoglycosides: These are often used to treat serious infections but can be harmful to the kidneys.
Vancomycin: Used for certain resistant infections, it can also cause kidney problems.
Beta-lactams: These include penicillins and cephalosporins, which can sometimes lead to kidney damage.

How to Reduce Risk

Hydration: Drinking plenty of water can help protect the kidneys.
Monitoring: Regular blood tests can help catch kidney issues early.

Symptoms of Kidney Damage

Feeling tired or weak
Swelling in the body
Changes in urination patterns

If you are taking antibiotics and notice any of these symptoms, it is important to talk to a healthcare provider. You can start by using Ubie's free AI symptom checker to help assess your symptoms and understand whether they may be related to your medication, then discuss the results with your doctor to determine if adjustments are needed.

(References)

Savoldi S. (2012). Kidney damage by antibiotics and chemotherapy. Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia, 23059939.
Campbell RE, Chen CH, & Edelstein CL. (2023). Overview of Antibiotic-Induced Nephrotoxicity. Kidney international reports, 38025228.
Morales-Alvarez MC. (2020). Nephrotoxicity of Antimicrobials and Antibiotics. Advances in chronic kidney disease, 32146999.

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