How long does SSRI withdrawal last?
Last updated September 3, 2026.
SSRI withdrawal typically starts within days and resolves in one to three weeks, but some people have symptoms for months, and a slow taper is what separates the two experiences. The symptom cluster is distinctive: dizziness, brain zaps, nausea, insomnia, vivid dreams, irritability, and flu-like aches. Duration depends on the drug (short half-life agents like paroxetine and venlafaxine are the roughest), your time on it, and your taper speed. The standard taper reduces the dose about 50% every 2 to 4 weeks down to a low dose before stopping; if withdrawal bites, the answer is a slower taper, not a harder push. The trap to avoid is misreading withdrawal as relapse: withdrawal appears within days of a dose change and includes brain zaps, while relapse rebuilds gradually over weeks without them. Timing matters too: do not stop during a life crisis if you can help it, and do not stop without your prescriber in the loop. If dark or self-harm thoughts return at any point, call or text 988 in the US immediately.
What to do
- Taper, never stop cold: cut roughly half every 2 to 4 weeks as a starting schedule.
- Expect 1 to 3 weeks: typical withdrawal window after each reduction or the final stop.
- Hit hard? Slow down: a slower taper beats white-knuckling.
- Withdrawal is not relapse: days-fast onset plus brain zaps points to withdrawal.
- Self-harm thoughts = 988: call or text the crisis line immediately if they return.
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