You start a new medicine and notice ringing, muffled speech, or an unsteady feeling. Is the medicine responsible, is your hearing changing for another reason, or is it temporary?
Some medications can affect the inner-ear systems used for hearing and balance. These medicines may be essential for treating serious infections, cancer, heart disease, and other conditions. That is why the safest response is not to stop treatment on your own—it is to report the change promptly and let your healthcare team evaluate the risks, benefits, timing, and alternatives.
Older adults and family caregivers can help by noticing changes early, keeping an accurate medication list, and asking whether hearing or balance monitoring is appropriate.
What “ototoxic” means
A medicine or chemical is described as ototoxic when it can damage structures involved in hearing or balance. The possible effects may include hearing loss, tinnitus, dizziness, imbalance, or a combination.
ASHA patient guidance explains that some aminoglycoside antibiotics and certain chemotherapy medicines are known to cause permanent damage in some circumstances. Other medicines, including some salicylates and diuretics, may be associated with temporary or reversible effects in some people. The risk depends on the exact medicine, dose, duration, route, other treatments, health conditions, noise exposure, and individual susceptibility.
This does not mean that everyone taking a medicine in one of these categories will develop a hearing problem. It also does not mean that a symptom proves the medicine is the cause. The prescribing clinician and hearing professionals need the full medical context.
Which changes should you notice and report?
Contact your healthcare team if you notice a new or worsening change such as:
- ringing, buzzing, hissing, or another sound in one or both ears;
- voices becoming muffled or harder to understand;
- difficulty hearing high-pitched sounds;
- needing noticeably more television or phone volume;
- one ear seeming different from the other;
- dizziness, spinning, unsteadiness, or trouble walking;
- blurred or unstable vision during head movement;
- a sudden or rapidly progressing hearing change.
Write down when the symptom began, whether it is constant, which ear is affected, and how it relates to medicine doses or treatment dates. Family members may notice missed speech or louder volume before the person taking the medicine does.
Do not stop or change medicine on your own
Some potentially ototoxic medicines treat life-threatening conditions. Stopping, skipping, lowering, or delaying a dose without medical guidance can be dangerous.
The National Institute on Aging advises older adults not to stop prescription medicine unless their healthcare provider says it is safe. If you are worried about a side effect, contact the prescriber or pharmacist. They can review the purpose of the medicine, the symptom, other drugs and supplements, and whether a different dose, timing, treatment, monitoring plan, or alternative is medically appropriate.
Do not rely on an online list to make the decision. Brand names, generic names, doses, combinations, and personal risk factors matter.
Prepare for a useful conversation with your healthcare team
Bring an up-to-date list of everything you take:
- prescription medicines;
- over-the-counter pain relievers and cold medicines;
- vitamins, herbal products, and supplements;
- recent injections, infusions, chemotherapy, or hospital treatments.
Include the dose, frequency, start date, and prescribing clinician when possible. Ask:
- Can this medicine affect hearing or balance?
- What symptoms should I report immediately?
- Would a baseline hearing test be useful?
- How often should hearing or balance be monitored?
- Who should receive the test results?
- What should I do if a change appears between appointments?
Make sure the doctor, pharmacist, audiologist, and cancer or infection treatment team know about relevant symptoms and other medicines. Coordinated information is especially important when several clinicians are involved.
When hearing monitoring may be recommended
For certain treatments, the healthcare team may recommend a hearing test before therapy begins. This baseline provides a point of comparison if symptoms appear later.
Monitoring schedules vary with the medicine, dose, treatment plan, risk factors, and clinical protocol. Testing may include standard hearing thresholds, higher-frequency testing, speech measures, or other assessments selected by the audiologist.
Early changes can be hard to notice in daily life. Monitoring can help the medical team identify a change, weigh treatment needs, and plan communication or hearing support. It does not guarantee that hearing changes can always be prevented or reversed.
Where hearing aids fit—and where they do not
A hearing aid may help some people manage an established hearing loss by improving access to sound. It does not remove a medicine from the body, reverse inner-ear damage, or replace medical review of a new symptom.
If hearing has changed, an existing hearing aid may need reevaluation. Do not simply keep increasing volume. A professional can check hearing, speech understanding, device function, fit, and settings.
Over-the-counter hearing aids are intended for adults age 18 or older with perceived mild to moderate hearing loss. A history of ototoxic medication exposure, sudden change, major asymmetry, severe dizziness, or other warning signs is a reason to seek professional evaluation rather than relying only on self-fitting.
When to seek urgent care
Sudden hearing loss—particularly in one ear—requires prompt medical attention. Seek urgent medical guidance for a sudden or rapidly worsening change, severe dizziness, new neurological symptoms, ear pain or drainage, or symptoms following an injury.
If you are receiving chemotherapy, intravenous antibiotics, or another closely monitored treatment, use the contact instructions provided by that treatment team. Do not wait for a routine hearing-aid appointment when the medical team has told you to report symptoms immediately.
A simple family action plan
- Keep one medication list: include prescriptions, OTC products, supplements, doses, and dates.
- Record the change: note the symptom, ear, start time, pattern, treatment date, and related balance problems.
- Call the right clinician: contact the prescriber, pharmacist, or treatment team without changing medicine yourself.
- Ask about testing: determine whether baseline or follow-up audiology is appropriate.
- Share results: make sure relevant clinicians receive the hearing information.
- Review hearing devices: if hearing has changed, have existing devices and settings checked.
- Know the urgent signs: act promptly for sudden hearing loss or serious associated symptoms.
Medication decisions often involve balancing serious health needs with possible side effects. Clear records, early reporting, and coordinated care give older adults and families a safer way to respond than guessing or stopping treatment alone.
This article is for general education and is not a substitute for medical advice, diagnosis, medication management, or treatment.
