Half-life
~66 hours. One of the longer half-lives among modern antidepressants.
Withdrawal timeline
Delayed onset due to the long half-life.
When symptoms do occur, intensity peaks in the second week.
Most patients are through any discontinuation symptoms within 2-3 weeks.
Common symptoms
- Headache
- Nausea
- Mild dizziness
- Irritability
- Sleep disturbance
Less common
- Flu-like fatigue
- Anxiety rebound
Tapering guidance
- A typical taper reduces by 5-10 mg every 1-2 weeks (e.g., 20 mg to 10 mg to 5 mg to off).
- Some patients on the lowest doses can stop without a formal taper given the long half-life.
- Coordinate any taper with the prescribing physician.
Where ketamine therapy fits
Trintellix and ketamine work through different mechanisms and are considered compatible. Continue Trintellix as prescribed during ketamine treatment unless the prescribing physician advises otherwise. The conversation about ketamine in a Trintellix context most often comes up when response has been partial after a full trial.
Frequently asked questions
How long does Trintellix withdrawal last?
Most patients have mild symptoms peaking in the first 1-2 weeks after stopping, with full resolution within 2-3 weeks.
Is Trintellix compatible with ketamine therapy?
Yes. The two work through different mechanisms with no required washout. Continue your normal dose unless the prescribing physician advises otherwise.
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.