Stopping Lexapro (escitalopram) can trigger a set of physical and psychological symptoms known as discontinuation syndrome. About 15% of people who stop an antidepressant experience symptoms specifically caused by the discontinuation itself, and Lexapro is classified as a moderate-risk medication for these effects. The symptoms are temporary for most people, but they can be uncomfortable and sometimes alarming if you’re not expecting them.
Common Symptoms
Discontinuation symptoms typically begin one to three days after your last dose, though they occasionally start within hours or take over a week to appear. The most frequently reported effects include:
- Flu-like symptoms: fatigue, headache, body aches, and sweating
- Digestive issues: nausea, vomiting, cramps, diarrhea, or loss of appetite
- Dizziness and lightheadedness
- Vivid dreams or nightmares
- Mood changes: anxiety, irritability, agitation, or aggression
- Burning, tingling, or shock-like sensations
For most people, these symptoms resolve within one to two weeks, though some experience them for longer. About one in 35 people will have symptoms severe enough to be considered serious. In rare cases, stopping can carry more significant risks, including suicidal thoughts or mania.
What Brain Zaps Feel Like
One of the most distinctive and unsettling withdrawal effects is something patients call “brain zaps.” These are brief electrical-shock sensations that feel like they originate inside the head. Each zap typically lasts about one second, though they can repeat throughout the day.
People often describe them as jolts of electricity that cause a brief stutter or pause in thinking, almost like the brain momentarily reboots. Many people also notice jumpy lateral eye movements paired with the zaps, sometimes hearing a faint “whoosh” sound when moving their eyes from side to side. Some report tingling in the lips or face alongside the sensation. Brain zaps aren’t dangerous, but they can be disorienting enough to slow you down during daily activities.
Why Your Body Reacts This Way
Lexapro works by increasing the amount of serotonin available between nerve cells. Over time, your brain adapts to that extra serotonin by dialing down the sensitivity of its serotonin receptors. When you stop the medication abruptly, serotonin levels drop suddenly, but those receptors are still in their reduced-sensitivity state. The mismatch between low serotonin supply and dampened receptors is what produces withdrawal symptoms.
Because serotonin operates throughout the body, not just the brain, the effects show up as both mental and physical symptoms. There’s also some evidence that other brain chemicals involved in mood, energy, and calm are affected during withdrawal, which may explain the wide range of symptoms people experience.
Withdrawal Symptoms vs. Returning Depression
One of the trickiest parts of stopping Lexapro is figuring out whether what you’re feeling is withdrawal or your original depression coming back. There’s real overlap: discontinuation syndrome can include anxiety and depressed mood, which look a lot like the condition Lexapro was treating.
Timing is the most useful clue. Withdrawal symptoms tend to appear within the first few days of stopping and often include physical complaints that aren’t typical of depression on its own, like dizziness, flu-like feelings, brain zaps, and nausea. A true relapse of depression usually develops more gradually, over weeks, and presents mostly as emotional and cognitive symptoms (persistent sadness, loss of interest, difficulty concentrating) without those distinctive physical effects. If symptoms appear quickly after stopping and include physical sensations you didn’t have before starting Lexapro, discontinuation syndrome is the more likely explanation.
What Raises Your Risk
A large meta-analysis published in The Lancet Psychiatry found that escitalopram is associated with higher frequencies of discontinuation symptoms compared to several other antidepressants. Beyond the medication itself, certain factors make withdrawal more likely or more intense. Stopping abruptly rather than tapering gradually is the biggest one. Longer duration of use and higher doses also increase risk, because the brain has had more time and stronger signals to adapt its receptor sensitivity.
How Tapering Works
Gradual dose reduction is the standard approach to minimize withdrawal. But the way most people think about tapering (cutting the dose in half, then in half again) doesn’t match how the drug actually affects brain chemistry. The relationship between dose and effect isn’t linear. Dropping from 20 mg to 10 mg has a much smaller impact on serotonin activity than dropping from 10 mg to zero. This means the final reductions need to be the smallest and slowest.
This concept, sometimes called hyperbolic tapering, involves making progressively smaller dose reductions as you approach zero. In practice, this often requires tools beyond standard tablets. Liquid formulations, tablet cutters, compounded capsules, or dissolving tablets in water can help achieve the small doses needed at the end of a taper. Skipping doses on alternate days is generally not recommended, because Lexapro’s effects wear off within about a day, creating a roller coaster of drug levels that can trigger withdrawal symptoms between doses.
Managing Symptoms During the Taper
If withdrawal symptoms appear during tapering, slowing down the schedule is the first and most effective response. You can return to your previous dose, let symptoms settle, and then reduce more gradually the next time.
For specific symptoms, straightforward remedies can help. Over-the-counter pain relievers like ibuprofen or acetaminophen work for headaches. Staying hydrated, eating regular meals, and getting exercise all support your body through the transition. For more disruptive symptoms like persistent nausea, insomnia, or anxiety, prescription options are available on a short-term basis. In some cases, a prescriber may switch you to a longer-acting antidepressant that produces a more gentle decline in serotonin levels, then taper off that medication instead.
If you’re taking other medications alongside Lexapro, their doses may need adjustment as you taper, since antidepressants can interact with other drugs in ways that change once the antidepressant is removed.