Ototoxic Medications That Can Cause or Worsen Tinnitus

"Ototoxic" simply means toxic to the ear — capable of damaging hearing, balance, or both. A surprisingly long list of medications, both prescription and over-the-counter, are known or suspected to be ototoxic, and tinnitus is often the earliest warning sign, showing up before any measurable hearing change.

The main categories

Pain relievers. High-dose or frequent aspirin, NSAIDs (ibuprofen, naproxen), and even acetaminophen have been linked to increased tinnitus risk, particularly with regular use rather than occasional doses. A 22-year longitudinal study of 69,455 women found frequent NSAID or acetaminophen use associated with close to a 20% higher risk of persistent tinnitus. Aspirin behaved differently from the rest: low-dose aspirin — the dose commonly taken for cardiovascular protection — showed no elevated risk with frequent use, and the moderate-dose association appeared specifically in women under 60 rather than across the whole cohort. There is more on aspirin and NSAIDs separately.

Aminoglycoside antibiotics. Gentamicin, tobramycin, streptomycin, and similar drugs are the most seriously ototoxic medications in common use. ASHA's guidelines on cochleotoxic drug therapy estimate roughly four million patients a year are potentially at risk of hearing loss from this class alone. They're typically reserved for serious infections and given under hospital supervision with blood-level monitoring specifically because of this risk — prospective hearing assessment is the only reliable way to detect the damage before someone notices it themselves.

Platinum-based chemotherapy. Cisplatin and carboplatin are well-documented causes of permanent tinnitus and hearing loss. Oncologists weigh this risk against the drugs' effectiveness for cancer treatment — it's a genuine tradeoff, not an oversight, and not usually a reason to avoid a recommended chemotherapy regimen.

Loop diuretics. Furosemide and similar drugs, especially at high doses or given quickly by IV, can cause tinnitus that's usually reversible. The mechanism is different from the drugs above: rather than killing hair cells, loop diuretics disrupt the stria vascularis — the tissue that maintains the cochlea's electrical environment — and that disruption reverses. Permanent loss is rare, and mainly reported in severe renal failure or when combined with another ototoxic drug.

Quinine and antimalarials. Not just historical, and not only at high doses. Controlled studies in healthy volunteers found quinine produced measurable high-frequency hearing loss at ordinary therapeutic plasma concentrations, alongside tinnitus — and audiograms returned to normal afterwards. A 2021 review of antimalarial ototoxicity found most reported symptoms, hearing loss and tinnitus among them, were reversible.

Reversible vs. permanent

This distinction matters more than the list itself. Tinnitus from aspirin, NSAIDs, and loop diuretics is typically reversible within days to weeks of stopping or reducing the dose. Tinnitus from aminoglycosides and platinum chemotherapy is frequently permanent, because these drugs destroy cochlear hair cells, which don't regenerate.

Why individual risk varies

Not everyone taking an ototoxic medication develops tinnitus. Risk tends to be higher with larger doses, longer use, combining more than one ototoxic drug at once, pre-existing hearing loss, and reduced kidney function (which slows how quickly a drug clears the body). This variability is why tinnitus that starts after a new prescription is worth flagging even if the drug is a common one you'd expect to tolerate fine.

What to actually do about it

If tinnitus starts or worsens after starting a new medication, tell your prescriber and consider getting a baseline hearing evaluation — don't stop the medication on your own first, especially for anything treating a serious condition. Depending on the drug, options might include adjusting the dose, switching to an alternative, or simply monitoring, if the medication is essential and the tinnitus is mild. For medications given in a hospital setting with known ototoxicity risk, ask whether hearing monitoring is part of the standard protocol — for some drug classes, it already is.