Why stopping an antidepressant isn't as simple as just stopping
Antidepressants — SSRIs like sertraline and fluoxetine, SNRIs like venlafaxine, and others — work by altering the balance of neurotransmitters in your brain, primarily serotonin. Your brain adapts to the presence of the drug over time, adjusting its own receptor sensitivity and signaling patterns to compensate. When you remove the drug suddenly, your brain doesn't have time to readjust. The result is a cluster of symptoms known as antidepressant discontinuation syndrome: dizziness, "brain zaps" (brief electric shock sensations), nausea, flu-like aches, vivid dreams, irritability, and anxiety. These can begin within a day or two of stopping and last anywhere from a few days to several weeks.
The intensity of discontinuation symptoms varies significantly by drug. Paroxetine (Paxil) and venlafaxine (Effexor) are notorious for producing severe symptoms because they leave the body quickly — they have a short "half-life." Fluoxetine (Prozac), by contrast, has an unusually long half-life and essentially tapers itself, which is why it's sometimes substituted temporarily when coming off harder-to-stop medications. The dose you've been taking and how long you've been taking it also matter: higher doses and longer duration mean your brain has adapted more deeply, and it will need more time to recalibrate.
It's also important to distinguish discontinuation syndrome from relapse. They can look similar — both involve emotional distress — but they have different timelines and characteristics. Discontinuation symptoms tend to appear within days of stopping and include physical symptoms like dizziness and brain zaps that aren't typical of depression or anxiety. Relapse typically develops more slowly, over weeks, and mirrors your original symptoms. Knowing the difference helps you and your doctor make a more informed decision about whether to continue the taper or reconsider.
The desire to stop looks different for different people
People come to this question from very different places — and the right approach depends on which situation fits yours.
What happens when people stop without a plan
Stopping abruptly — or tapering too fast — doesn't just cause temporary discomfort. For a meaningful subset of people, rapid discontinuation triggers a return of the original symptoms, sometimes more severely than before. This can make it genuinely hard to tell whether what you're feeling is withdrawal or relapse — and that confusion leads many people to conclude they "need" the medication indefinitely when they may simply need a slower exit. Research published in The Lancet Psychiatry in 2019 found that standard tapering schedules (reducing by fixed percentages over a few weeks) are far too fast for many patients, and that gradual hyperbolic tapering — cutting by progressively smaller amounts — is substantially better tolerated. That paper hasn't fully filtered into everyday clinical practice yet, which means some prescribers are still recommending schedules that are too aggressive for long-term users.
A 2019 review in The Lancet Psychiatry (Horowitz & Taylor) found that over half of people who try to stop antidepressants experience withdrawal symptoms, and for 46% of those, the symptoms are severe. The evidence strongly favors very gradual tapering — sometimes over months — rather than the 2–4 week schedules still commonly prescribed. If your doctor's plan feels too fast and you're struggling, that's worth raising directly.
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We've laid out what the evidence actually says about tapering schedules, which drugs are hardest to stop, how to talk to your doctor, and what to do if you're struggling mid-taper.
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What others have experienced
214 community experiences-
MR
I'd been on sertraline for four years and my psychiatrist had me taper over six weeks — dropping 50mg at a time. By week three I was having brain zaps every few minutes and couldn't sleep. I went back to her and asked if we could slow down, and she switched me to a four-month schedule cutting much smaller amounts. Night and day difference. I'm now off and have been fine for two months. Don't let anyone rush you.
47 found this helpful -
DK
I stopped venlafaxine cold turkey because I ran out and couldn't get an appointment for two weeks. Do not do this. The dizziness was so bad I couldn't drive, and I had what I can only describe as emotional chaos — crying at nothing, snapping at everyone. A friend told me to call a telehealth service and get a bridge prescription. The doctor prescribed a small dose of fluoxetine to bridge the gap, which apparently has a long enough half-life to ease the transition. It actually worked within 48 hours.
63 found this helpful -
SL
I've been on and off antidepressants three times over ten years, so I feel like I've learned from experience. The time I went slowly — tiny reductions every three to four weeks, giving myself permission to pause if things got rough — was the only time I actually got off without feeling like I was losing my mind. What I didn't expect was that the hardest part wasn't physical, it was the anxiety about whether every bad day meant relapse. Therapy alongside the taper made a huge difference for that piece.
39 found this helpful
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