Most people know loud noise can damage your hearing, but medications are a lesser-known culprit. Medications that can impact hearing are known as ototoxic medications, meaning they have the potential to harm the inner ear.
While many ototoxic drugs are necessary (and highly effective) for treating serious medical conditions, knowing the risks can help you recognize symptoms early and seek appropriate care if needed.
What Is Ototoxicity?
Ototoxicity refers to damage to the inner ear caused by medications or chemicals. The inner ear contains delicate hair cells that help convert sound waves into signals the brain can interpret. When these cells sustain injury, that may impact your hearing and balance.
Symptoms of ototoxicity include:
- Hearing loss (often starting with high-frequency sounds)
- Ringing in the ears (tinnitus)
- A feeling of fullness in the ear
- Dizziness or balance problems
In some cases, hearing changes are temporary. In others, they may be permanent, especially if exposure continues.
Common Ototoxic Medications
It’s important to remember that not everyone who takes these medications will experience hearing problems. Risk often depends on dosage, duration, existing hearing health, kidney function, and whether multiple ototoxic drugs are used together.
Some commonly referenced ototoxic medications include:
Aminoglycoside Antibiotics
Medications such as gentamicin and tobramycin are powerful antibiotics used to treat severe infections. According to research published in the National Library of Medicine, aminoglycosides are among the most well-known causes of medication-related hearing damage, particularly when used in high doses or for extended periods.
Certain Chemotherapy Drugs
Platinum-based chemotherapy agents, such as cisplatin, are highly effective in treating various cancers but carry a known risk of hearing loss. Monitoring is often recommended during treatment.
Loop Diuretics
Drugs like furosemide, commonly used to treat heart failure or fluid retention, can affect hearing, particularly when administered intravenously at high doses.
High-Dose Aspirin and NSAIDs
Large doses of aspirin and certain nonsteroidal anti-inflammatory drugs (NSAIDs) have been associated with reversible hearing loss and tinnitus. In many cases, symptoms improve once the medication is reduced or discontinued under medical supervision.
Who Is at Higher Risk for Ototoxicity?
Certain individuals may be more vulnerable to the effects of ototoxic medications, including:
- Adults older than 60
- Patients with pre-existing hearing loss
- Individuals with kidney disease
- Those receiving multiple ototoxic drugs simultaneously
Because the inner ear does not regenerate damaged hair cells, prevention and early detection are critical.
Ototoxic Medications: Monitoring and Prevention
When you’re prescribed a medication known to carry ototoxic risk, your provider may recommend baseline and follow-up hearing evaluations. That’s because early detection allows for possible dosage adjustments or medication changes before permanent damage occurs.
You should never stop a prescribed medication without speaking to your healthcare provider first. In many cases, the benefits of treatment outweigh the risks, and hearing can be monitored throughout therapy. That said, if you notice ringing in the ears, muffled hearing, or balance changes while taking medication, inform your provider right away.
When to Get an Evaluation for Hearing Changes
Any sudden or noticeable change in hearing should be evaluated by a qualified professional. Even if your symptoms seem mild, early assessment can help determine whether medication may be contributing and whether intervention is needed.
Understanding the potential impact of ototoxic medications empowers you to protect your hearing while receiving the medical care you need. With proper monitoring and communication between you and your healthcare team, risks can often be minimized.
If you have concerns about hearing changes or medication side effects, schedule an evaluation with Newton Hearing Center today. We’ll provide the support you need for your best auditory health.
