Evidence‑Based Tapering Recommendations for Long‑Term Bupropion XL Use

Physiologic Adaptation with Prolonged Therapy

• In patients who have taken bupropion XL 150 mg daily for more than three years, physiologic adaptation develops, making a gradual taper preferable to abrupt cessation even when the starting dose is low. Strength of evidence: observational data from the Mayo Clinic Proceedings. [1][2]

Managing Intolerable Withdrawal Symptoms

• If withdrawal symptoms (e.g., anxiety, irritability, insomnia, headache) become intolerable during the initial reduction to 150 mg every other day, the taper should be paused at that dosing schedule for an additional 1–2 weeks before attempting full discontinuation. Strength of evidence: expert consensus reported in the Mayo Clinic Proceedings. [1][2]

Post‑Taper Follow‑up

• After completing the taper (stop after 1–2 weeks on 150 mg every other day), a follow‑up visit should be scheduled within 2–4 weeks to evaluate for delayed withdrawal effects or recurrence of mood symptoms. Strength of evidence: clinical recommendation from the Mayo Clinic Proceedings. 1

Slow Taper for Severe Withdrawal

• When severe withdrawal manifestations arise—such as marked anxiety, insomnia that impairs functioning, or destabilization of mood—the patient should be returned to 150 mg daily and a slower taper implemented over 4–6 weeks. Strength of evidence: expert guidance from the Mayo Clinic Proceedings. [1][2]