Can You Just Stop Taking Sertraline (Zoloft)? What Happens

You can physically stop taking sertraline at any time, but stopping all at once is the approach most likely to cause withdrawal. Zoloft (sertraline) has a half-life of about 26 hours, so levels fall fast and symptoms like dizziness, brain zaps, nausea, and irritability usually start within 1 to 3 days. A systematic review by Davies and Read found that 56% of people who stop antidepressants report withdrawal effects, and a slow, gradual taper is the safer way to come off.

This guide covers what happens when you just stop taking sertraline, what a missed dose does, what to do if you already stopped, and when reinstating makes sense. If you want the full step-by-step plan, the companion guide on tapering off sertraline safely covers the schedule itself.

What happens when you just stop taking sertraline

Stopping sertraline abruptly removes the drug from a brain that has adjusted to it. After weeks or months on Zoloft, your serotonin system has changed its receptors and transporters to work around the medication. When sertraline disappears in a few days, those adaptations are suddenly unopposed, and that mismatch produces withdrawal.

Antidepressant discontinuation syndrome is the medical term for this set of symptoms. It is a physical reaction to the drop in drug level, not a sign of addiction and not a sign of weakness. The most common symptoms after an abrupt sertraline stop are dizziness, electric "brain zaps," nausea, flu-like aches, insomnia, vivid dreams, irritability, and anxiety.

The best direct evidence comes from a trial that swapped people's maintenance antidepressant for a placebo without telling them. In that 1998 randomized trial by Rosenbaum and colleagues, 242 patients had their SSRI interrupted for 5 to 8 days, and people taking sertraline developed new physical and emotional symptoms within that window. Sertraline caused fewer symptoms than paroxetine in the trial, but clearly more than the long-acting drug fluoxetine.

Stopping sertraline suddenly also has a second risk that is easy to miss. Withdrawal anxiety and low mood can look like the original depression coming back, which leads many people to conclude they "still need it" when the real problem was the speed of stopping.

The table below shows the typical pattern after an abrupt stop, drawn from the sources cited in this guide.

Time after last sertraline dose	What usually happens	What to watch for
Day 1 to 2	Drug level drops by roughly half each day	Mild dizziness, feeling "off," irritability
Day 2 to 4	Withdrawal symptoms appear for most people who get them	Brain zaps, nausea, headache, poor sleep
Day 4 to 10	Peak of symptoms	Anxiety, crying spells, vivid dreams, flu-like aches
Week 2 to 4	Symptoms ease for many short-term users	Lingering sleep and mood swings
Beyond 4 weeks	Protracted withdrawal in a minority	Waves of anxiety, low mood, sensory symptoms

Bottom line: just stopping sertraline is possible, but most people who stop abruptly get withdrawal within days.

Is it dangerous to stop Zoloft (sertraline) cold turkey?

Stopping Zoloft cold turkey is rarely life-threatening, but it can be severely unpleasant and occasionally risky. Sertraline withdrawal does not cause seizures the way stopping a benzodiazepine can. The danger is mostly indirect: intense anxiety, agitation, dizziness that makes driving unsafe, and in some people a sharp drop in mood.

The FDA label for sertraline warns against abrupt stopping. The Zoloft prescribing information from the FDA lists dizziness, sensory disturbances such as electric shock sensations, anxiety, confusion, and insomnia as discontinuation symptoms, and it recommends a gradual dose reduction rather than abrupt cessation.

The UK's national guideline now says the same thing more strongly. NICE guideline NG222 on medicines associated with dependence or withdrawal tells prescribers to agree a gradual, individualized taper with the patient and to slow down if withdrawal symptoms appear. The Royal College of Psychiatrists' guidance on stopping antidepressants also warns that withdrawal can be severe and long-lasting for some people.

Severity depends on three things. People who took sertraline for longer than about 6 to 8 weeks, people on higher doses, and people who had withdrawal before all tend to have a harder time. Someone who took 25 mg for 3 weeks may notice very little. Someone who took 150 mg for 5 years and stops overnight is far more likely to struggle.

If you notice suicidal thoughts, severe agitation, or an urge to harm yourself after stopping, treat that as an emergency. Contact a crisis line or emergency services the same day.

Bottom line: stopping Zoloft cold turkey is not usually medically dangerous, but the FDA, NICE, and the Royal College of Psychiatrists all advise against it.

What a missed sertraline dose does to your body

A single missed sertraline dose usually causes nothing, or mild symptoms the next day. Because sertraline's half-life is around 26 hours, missing one dose lets the level drop by roughly half before your next one. Some people feel a little dizzy, irritable, or "buzzy" by the evening. Most feel nothing at all.

Two or more missed doses in a row are different. By day 2 or 3 without sertraline, the level has fallen far enough that withdrawal symptoms start for many people. This is often how people discover they are sensitive to sertraline withdrawal in the first place: they forgot their pills on a trip and felt terrible by the third day.

Standard advice from the drug label is simple. If you miss a dose, take it as soon as you remember, unless it is nearly time for the next one. Never take a double dose to catch up.

Irregular dosing deserves its own warning. Taking sertraline on some days and skipping others creates repeated small withdrawals. Some people do this deliberately as a homemade taper, such as "every other day," and it tends to produce a rollercoaster of symptoms. A steady daily dose that gets smaller over time is gentler than skipping days.

The table below summarizes what usually happens with missed Zoloft doses.

Missed sertraline doses	Typical effect	What to do
1 dose	Usually none, sometimes mild dizziness	Take it when you remember, unless the next dose is near
2 doses in a row	Mild withdrawal symptoms in some people	Resume your normal dose
3 or more doses	Withdrawal likely, often with brain zaps	Resume your normal dose and let things settle
Every-other-day dosing	Repeated ups and downs in symptoms	Switch to a smaller daily dose instead

Bottom line: one missed sertraline dose is rarely a problem, but 3 or more in a row usually triggers withdrawal.

I stopped sertraline 5 days ago and feel awful. Should I start taking it again?

If you stopped sertraline within the last few weeks and the withdrawal symptoms are hard to live with, restarting your previous dose is often the fastest way to relief. This is called reinstatement. Most people who reinstate within about 1 to 2 weeks of stopping feel better within a few days.

Reinstatement works because it removes the sudden mismatch between your brain's adaptations and the missing drug. Once you are stable again, you can come off much more slowly. The 2019 Lancet Psychiatry paper by Horowitz and Taylor on tapering SSRIs explains why that second attempt should use smaller and smaller reductions as the dose gets lower.

Reinstating is a decision to make with your prescriber, but you do not need to wait for a perfect plan. Many prescribers will simply tell you to restart the dose you were on. Some people do well restarting at a lower dose than before, especially if their symptoms are moderate.

If your symptoms are mild and improving each day, riding them out is also reasonable. Withdrawal after a short course of sertraline often fades within 2 to 4 weeks. A symptom diary helps here. Tracking sleep, dizziness, and mood in a tool like the taper journal shows you whether things are trending better or worse, which is hard to judge from inside a bad day.

Bottom line: if you just stopped sertraline and feel bad, restarting your previous dose usually brings relief within days, and you can then taper slowly.

Is it too late to reinstate if I stopped Zoloft months ago?

Reinstating Zoloft after a long gap is less predictable. The longer you have been off sertraline, the more your brain has already started readjusting, and restarting can sometimes cause its own unsettled period before it helps.

Clinicians who work with withdrawal generally treat the first 2 to 4 weeks after stopping as the window where reinstatement most reliably helps. After 2 to 3 months, results are mixed. Some people improve after restarting a small dose. Others feel more activated or anxious for a while.

If you stopped months ago and are still struggling, the question is usually whether you are dealing with protracted withdrawal or a return of the original condition. Protracted withdrawal is a set of symptoms that lasts months after stopping, often in waves, with new sensations you never had before you started sertraline. Brain zaps, sensory oddities, and symptoms that started right after stopping point toward withdrawal. Symptoms that match your original depression and built up gradually point toward relapse.

This is a decision where a knowledgeable prescriber matters. Our deprescriber directory lists clinicians who understand slow tapering and withdrawal. Patient-run communities such as Surviving Antidepressants also share detailed experience on cautious reinstatement after long gaps.

Bottom line: reinstating Zoloft works best in the first few weeks after stopping, and after several months it should be done cautiously with a knowledgeable prescriber.

How to stop taking sertraline the safer way

The safer way to stop taking sertraline is a gradual taper where each reduction is a percentage of your current dose, not a fixed amount. This is the principle behind hyperbolic tapering. Hyperbolic tapering is a method where dose reductions get smaller as the dose gets lower, because the last few milligrams of sertraline still have a large effect on the brain.

The reason comes from brain imaging. Horowitz and Taylor showed in their Lancet Psychiatry analysis that the relationship between sertraline dose and serotonin transporter occupancy is curved, so dropping from a low dose to zero is a much bigger biological step than it looks on paper. A cut from 25 mg to zero is far bigger, in effect, than a cut from 100 mg to 75 mg.

Many people do well reducing by about 5% to 10% of their current dose every 2 to 4 weeks, holding longer if symptoms appear. The Maudsley Deprescribing Guidelines and deprescribing.org both describe this slower, proportional approach, which is very different from the old "halve it for a week, then stop" advice.

Sertraline also comes as an oral liquid concentrate in many countries, which makes small reductions far easier than cutting tablets. The taper planner shows how each percentage cut translates into an actual dose. The tapering plan worksheet helps you write the plan down with your prescriber. For the specific steps at common doses, see the guide to sertraline dose reduction from 100 to 50 to 25 mg.

Bottom line: a gradual taper using percentage-based cuts is the safer alternative to just stopping sertraline.

Frequently asked questions

Can you just stop taking sertraline?

You can, but most people who stop sertraline abruptly get withdrawal symptoms within 1 to 3 days. The FDA label and NICE guidance both recommend a gradual taper instead.

Is it OK to stop Zoloft after 2 weeks?

Stopping Zoloft after 2 weeks usually causes mild symptoms or none, because the brain has had little time to adapt. Withdrawal becomes more likely after about 6 to 8 weeks of use.

What happens if I miss 3 days of sertraline?

After 3 missed days, many people notice dizziness, brain zaps, nausea, or irritability. Resuming your usual sertraline dose typically settles these symptoms within a few days.

How long does it take for Zoloft to leave your system?

Sertraline has a half-life of about 26 hours, so most of the drug clears within 5 to 7 days. Withdrawal can last longer than that, because the brain takes weeks or more to readjust.

Can I stop sertraline if I feel better now?

Feeling better is a common reason to stop sertraline, and a good time to plan a taper. Coming off slowly while you are stable protects that progress, and NICE NG222 advises agreeing a gradual plan with your prescriber first.

Stopping sertraline without the crash

Just stopping sertraline is possible, but it is the method most likely to cause withdrawal, and the Zoloft drug profile has the dosing and formulation details you need to plan something gentler. If you already stopped and feel unwell, reinstating your previous dose within the first few weeks usually brings relief. From there, a slow, percentage-based taper gives your brain time to adjust.

taper.community is a free peer forum and resource library for people coming off psychiatric drugs, built around slow, proportional tapering. If you want to compare notes with people who have stopped sertraline before you, the community forums are open to everyone.

This article is for informational purposes only and does not replace professional medical advice. Do not change or stop any medication without talking to a qualified healthcare provider. If you are having thoughts of suicide or self-harm, contact emergency services or a crisis line right away.