Wellbutrin (bupropion) is not classified among the major ototoxic drugs, but it can affect your hearing. Tinnitus, a persistent ringing or buzzing in the ears, is a recognized side effect listed on the FDA-approved prescribing label. In clinical trials, up to 6% of participants developed tinnitus while taking bupropion, compared to 2% or less on placebo. There is also at least one documented case of actual hearing loss linked to the medication, though this appears to be rare.
How Common Tinnitus Is at Different Doses
The risk of developing tinnitus on Wellbutrin appears to be dose-dependent. In placebo-controlled trials for major depression, 6% of patients taking 300 mg or 400 mg daily of the sustained-release formulation reported tinnitus, versus 2% on placebo. In trials for seasonal affective disorder using the extended-release version at 150 to 300 mg daily, the rate was lower: about 3%, compared to less than 1% on placebo.
These numbers tell a consistent story. The higher the dose, the more likely ear symptoms become. In published case reports, tinnitus typically appeared after a dose increase, often when patients moved from 300 mg to 450 mg daily. One patient described the onset as a constant, loud, bilateral ringing that was especially distressing in quiet environments and while trying to sleep.
Beyond Ringing: Can It Cause Hearing Loss?
The official FDA labeling lists “deafness” as a postmarketing adverse event under the “Special Senses” category, meaning it has been reported after the drug reached the market but was not captured in the original clinical trials. A case published in the journal Clinical Pediatrics documented a 26-year-old woman who developed progressive sensorineural hearing loss over several weeks while taking bupropion. Audiograms confirmed the loss was worsening over time, with significantly diminished speech reception in both ears.
After her dose was reduced and eventually discontinued, her hearing gradually returned. Follow-up audiograms showed marked improvement, eventually returning to her baseline. This is the first formally reported case of bupropion-associated sensorineural hearing loss, and the patient did have a pre-existing craniofacial condition that may have made her more susceptible. Still, the timeline of onset during treatment and recovery after stopping the drug strongly suggests a causal link.
Is the Damage Reversible?
For most people, yes. The available evidence consistently points to bupropion-related ear symptoms improving or resolving once the dose is lowered or the medication is stopped. In one documented case, a patient’s tinnitus decreased by about 30% within two weeks of stepping down from 450 mg to 300 mg daily. In another, tinnitus resolved completely after the medication was discontinued. A third case is particularly interesting: the patient’s tinnitus resolved on its own after nine months of continued treatment at the same dose, without any medication change at all.
The hearing loss case followed the same pattern. Once bupropion was tapered and stopped, sequential audiograms showed progressive recovery, with the patient eventually returning to a mild conductive loss consistent with her pre-existing baseline.
That said, “reversible” does not always mean “immediate.” Recovery timelines vary. Some people notice improvement within days of a dose reduction, while others may take weeks or months. And while complete resolution is the most commonly reported outcome, at least one case report describes the improvement as only partial, using the term “partially reversible tinnitus” in its title.
Why Wellbutrin Affects Hearing
The exact mechanism is not fully understood. Bupropion works differently from most antidepressants. Rather than targeting serotonin, it primarily increases dopamine and norepinephrine activity in the brain. It also blocks certain receptors involved in nerve signaling. The auditory system relies on precise neurochemical signaling between the inner ear and the brain, and drugs that alter neurotransmitter levels can disrupt this pathway. The dose-dependent pattern suggests that at higher concentrations, bupropion’s effects on these signaling systems become strong enough to generate abnormal auditory signals that the brain interprets as ringing or buzzing.
What to Do if You Notice Ear Symptoms
If you develop ringing in your ears or notice a change in your hearing while taking Wellbutrin, the timing relative to any recent dose changes is important information. Tinnitus that starts shortly after beginning the medication or increasing your dose is a recognizable pattern with bupropion. In documented cases, the most common approach was lowering the dose first rather than stopping the drug entirely. This allowed clinicians to see whether symptoms improved while still maintaining some therapeutic benefit for depression.
A dose reduction from 450 mg to 300 mg, for example, produced a noticeable decrease in tinnitus severity within two weeks in one case. If symptoms persist or worsen after a reduction, discontinuation has been the next step, and in those cases, the tinnitus typically resolved. An audiogram (a standard hearing test) can help establish whether actual hearing loss is present alongside the ringing, which would be useful information for deciding how aggressively to adjust or stop the medication.
Bupropion is not in the same category as drugs traditionally considered highly ototoxic, like certain IV antibiotics or platinum-based chemotherapy agents, which can cause permanent hearing damage. But it clearly carries a real, dose-dependent risk of tinnitus and, in rare cases, measurable hearing loss. The reassuring finding across the available evidence is that these effects appear to be reversible in the large majority of cases.