Atypical antidepressant (NDRI; norepinephrine-dopamine reuptake inhibitor)

Wellbutrin (bupropion) Withdrawal

Wellbutrin (bupropion) has a notably mild discontinuation profile compared to SSRIs and SNRIs. Because it works on dopamine and norepinephrine rather than serotonin, it does not produce the classic SSRI discontinuation syndrome (brain zaps, dizziness, GI distress). Most patients can taper Wellbutrin with little difficulty.

By Dr. Ben Soffer, DO — board-certified physician, at-home ketamine therapy in Florida and New Jersey.

Half-life

~21 hours for bupropion; metabolites have longer half-lives (~20-37 hours).

Withdrawal timeline

Onset— 2-5 days after dose reduction

Any symptoms tend to emerge gradually.

Peak— Week 1-2

When symptoms do occur, intensity is typically mild and peaks in the first 2 weeks.

Resolution— 1-3 weeks

Most patients return to baseline quickly.

Common symptoms

  • Fatigue or low energy
  • Difficulty concentrating
  • Mild irritability
  • Sleep changes
  • Return of depression symptoms

Less common

  • Headache
  • Mood lability

Notable / pattern-defining symptoms

Wellbutrin notably does NOT produce brain zaps, severe dizziness, or the flu-like syndrome that defines SSRI/SNRI withdrawal.

The most clinically relevant phenomenon when stopping Wellbutrin is often the return of the underlying depression or ADHD-spectrum symptoms it was treating, rather than a withdrawal syndrome per se.

Tapering guidance

  • A typical taper reduces the daily dose by half every 1-2 weeks (e.g., 300 mg to 150 mg to off).
  • Patients on Wellbutrin XL can usually transition to a lower dose directly without significant difficulty.
  • Coordinate the taper with the prescribing physician.

Where ketamine therapy fits

Wellbutrin is fully compatible with at-home ketamine therapy. The two work through entirely different mechanisms (Wellbutrin on dopamine/norepinephrine, ketamine on glutamate) and there is no required washout. Continue Wellbutrin as prescribed during ketamine treatment unless the prescribing physician advises otherwise. The conversation about ketamine in a Wellbutrin context most often comes up for patients seeking additional response after a full Wellbutrin trial has provided partial benefit.

Check ketamine therapy eligibilityMedication safety with ketamine

Frequently asked questions

Does Wellbutrin cause brain zaps when you stop?

No. Brain zaps are a classic SSRI/SNRI discontinuation symptom and are not associated with Wellbutrin, which works on dopamine and norepinephrine rather than serotonin.

How long does Wellbutrin withdrawal last?

Most patients experience minimal or no discontinuation symptoms. When symptoms occur, they are typically mild (fatigue, mood changes) and resolve within 1-3 weeks.

Is Wellbutrin compatible with ketamine therapy?

Yes. The two work through entirely different mechanisms with no required washout.

Important: This page is informational and does not constitute medical advice or a recommendation to start, stop, or change any medication. Tapering psychiatric medications should always be coordinated with the prescribing physician. Compounded ketamine for anxiety, depression, PTSD, and chronic pain is not FDA approved.

Browse all medication withdrawal guides.