Bupropion and teeth grinding
Is bupropion causing your teeth grinding, or is it actually helping with it? What the evidence shows about Wellbutrin, SSRI-induced bruxism, and dental wear.
Never start, stop, or change a medication based on what you read here. Bring questions to your dentist, physician, pharmacist, or prescribing clinician.
Quick answer
Unlike SSRIs and stimulants, bupropion is rarely associated with teeth grinding. In fact, bupropion is sometimes added to an SSRI specifically to reduce SSRI-induced bruxism. If you started bupropion and noticed new grinding, the cause may be something else (stress, sleep apnea, a different medication). If you are switching from an SSRI to bupropion, you may notice grinding improve over time.
The mechanism
Why bupropion is different from other antidepressants for grinding
Most psychiatric medications associated with bruxism affect serotonin (SSRIs) or dopamine and norepinephrine in a way that overstimulates jaw motor pathways (stimulants like Adderall and Vyvanse). Bupropion increases dopamine and norepinephrine, but the pattern is different: it does not increase serotonin, and the activation profile does not produce the same jaw muscle overactivity.
There is published evidence that adding bupropion to an SSRI can reduce SSRI-induced grinding in some patients. The proposed mechanism is that the dopamine effect of bupropion counterbalances the serotonin pathways that drive SSRI bruxism. This is not first-line management for grinding, but it is occasionally relevant when a patient needs both medications.
Bupropion is not entirely free of bruxism reports. A small minority of patients describe new grinding after starting it. In most cases, this is mild and resolves with time, or has another contributing cause (stress, sleep disruption, caffeine intake) that responds to direct management.
Practical steps
What to do if you notice grinding on bupropion
Signs to watch for
When to call your dentist
- Morning jaw soreness that is now routine.
- Headaches in the temples on waking.
- A new chip or sharp edge on a tooth.
- Teeth that look shorter or flatter than they were before.
- Jaw clicking, popping, or locking that started recently.
Common questions
What patients ask about Bupropion and teeth grinding and jaw clenching
KYT Framework
KYT Framework connection
Four questions that shape how Bupropion and teeth grinding and jaw clenching factor into dental planning.
Structure
Does teeth grinding and jaw clenching change bone, gum tissue, saliva, enamel, or healing support?
Force
Will chewing, grinding, or bite pressure create added risk for vulnerable teeth or healing tissue?
Timing
Is teeth grinding and jaw clenching something to prevent now, monitor, or evaluate soon?
Stability
What plan gives the mouth the best chance to stay stable?
Next steps
What to do about teeth grinding and jaw clenching
The medication side is usually not the right thing to change. The dental side is. Here is where to go next.
More about Bupropion
Other medications and teeth grinding and jaw clenching
Taking Bupropion and noticing teeth grinding and jaw clenching changes?
Bring your medication list. KYT can evaluate cavity risk, gum health, and treatment timing in person.
Reviewed by Dr. Isaac Sun, DDS · KYT Dental Services · Fountain Valley, CA · Last reviewed: June 2026
This page is general patient education. It does not replace advice from your prescribing clinician, physician, pharmacist, or dentist. Medication information may change; verify with your clinical team.