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
Common questions
How long does SSRI withdrawal last?
For most people, SSRI withdrawal (discontinuation) symptoms last one to three weeks, starting within a few days of stopping or cutting the dose. The typical symptoms: dizziness, "brain zaps" (brief electric-shock sensations), nausea, insomnia, vivid dreams, irritability, anxiety, and flu-like achiness. But the honest range is wide. NICE guidance notes that some people have mild symptoms that pass quickly, while others get severe symptoms lasting much longer, sometimes months, with paroxetine and venlafaxine the usual hardest-to-stop drugs because of their short half-lives. Duration tracks three things: which drug (short half-life is rougher), how long you were on it, and how fast you came off. That last one is the lever you control. Tapering, reducing the dose gradually over weeks or months (a common schedule cuts the dose by about half every 2 to 4 weeks until you reach a low dose), prevents or softens most withdrawal. If symptoms hit hard during a taper, the standard move is to slow the taper down, not push through. Two warnings: withdrawal is often mistaken for relapse, and the difference is timing and texture (withdrawal starts within days and includes brain zaps; relapse rebuilds over weeks), and stopping during a rough life period raises relapse risk. If stopping brings back thoughts of harming yourself, call or text 988 in the US right away.