Brain zaps may sound like something from a sci-fi film, but they’re a real medical symptom that can occur when you stop taking antidepressants. Many people describe brain zaps as a quick feeling of an electrical surge in the brain.
Brain zaps can happen as part of Antidepressant Discontinuation Syndrome (ADS), which around 20% of people develop after abruptly stopping or dramatically lowering their dose of medication [1]. For brain zaps specifically, one study found 12% of people had them 60 days after changing their antidepressant use, and 51% experienced them two years afterward [2].
But what exactly are brain zaps, what causes them, and what help is available? Let’s take a look.
What Is ADS?
ADS is a medical condition that can happen when you stop taking antidepressants after a long time of use. It is essentially withdrawal from antidepressants and affects up to 86% of people who stop, or try to stop taking antidepressants [3]. Abruptly stopping increases the likelihood of developing ADS.
Withdrawal from antidepressants is not the same as physical symptoms that frequently manifest with addiction to substances. ADS produces symptoms including:
- Brain zaps
- Fatigue
- Sweating
- Nausea
- Dizziness
- Changes in mood
Brain zaps that occur as part of ADS belong to paresthesia symptoms, meaning symptoms that feel like pins and needles, tingling, or numbness.
What Does a Brain Zap Feel Like?
Some people call brain zaps “brain shocks,” “brain flips,” or “brain shivers” [4]. Before the term “brain zaps” was introduced, “electric shocks” was the most common way to refer to the sensation.
Although the language sounds severe, brain zaps are usually brief, mild, and harmless. They typically last for a few seconds. They can certainly be startling and distracting, and can cause anxiety for someone who doesn’t expect them, but brain zaps are not dangerous and they do not impair awareness or limit your ability to function.
Brain zaps can feel different for different people, but repeat descriptions include:
- An electrical jolt to the brain
- Dizziness
- Vertigo
- An out-of-body experience
- Confusion
- “Hearing” eye movement
Why Do Brain Zaps Happen?
Changes in brain chemistry are most likely the reason brain zaps happen; however, the exact cause still isn’t fully understood.
Selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) are the antidepressants most linked to brain zaps. These types of medication change the levels of serotonin, a neurotransmitter in the brain. When SSRIs or SNRIs are stopped or the dosage is lowered significantly, the regulation of serotonin is disrupted. This fluctuation is believed to cause brain zaps [5].
The type of antidepressant also influences how likely you are to experience withdrawal symptoms, including brain zaps. Medications that have a shorter half-life—meaning they’re broken down in the body faster — carry a higher chance of producing brain zaps when stopped. Meanwhile, research suggests antidepressants with a longer half-life, may reduce the severity of ADS symptoms [6].
All antidepressants can produce brain zaps, but the ones with shorter half-lives and therefore the highest risk include:
- Duloxetine (brand name: Cymbalta)
- Paroxetine (brand name: Paxil)
- Venlafaxine (brand name: Effexor)
Anyone can have brain zaps after stopping or reducing antidepressant medication, but there are factors that contribute to the possibility of them happening. These include if you have [5]:
- Been taking antidepressants for a long time (i.e., longer than a year)
- Panic attacks
- Migraines
- Problems sleeping
- Seizures
Are Brain Zaps Dangerous?
No, brain zaps are not considered dangerous or detrimental to your health. Still, you should always let your physician know if you experience brain zaps when stopping, changing, or taking your usual antidepressant medication. Brain zaps may be a sign to reassess your dose and tapering plan.
It is also important to know when a brain zap is happening or if something else is taking place. If you experience any of the following symptoms alongside brain zaps, immediately contact emergency services:
- Loss of consciousness
- Chest pain
- Psychosis
- Signs of a stroke
- Suicidal thoughts
Do Brain Zaps Require Treatment?
There is no medical treatment available for brain zaps, and most people find the symptom lasts no more than a day or two after stopping or lowering antidepressants.
What can help, though, is speaking with a doctor before starting to taper off and make a plan that reduces the risk of brain zaps. By very slowly lowering the dose of antidepressants, over a long period of time, your brain chemistry can recalibrate.
If you’re taking an antidepressant with a short half-life, your doctor may suggest changing to a version with a longer half-life to begin tapering and lower the chance of experiencing brain zaps.
Treatment for depression should already integrate more than medication alone. Evidence-based therapies such as Cognitive Behavioral Therapy (CBT) help reframe negative thought patterns and build problem-solving skills that support long-term recovery. Similarly, activities that focus on mindfulness, stress reduction, and emotional regulation complement antidepressant medication, and may help alleviate brain zaps.
Mental Health Treatment at Colorado Mental Health Services
Depression is not a choice — it’s a very difficult reality for many people. If you’re navigating your mental health right now, you’re not alone. Our team of licensed physicians have years of experience supporting people as they find mental peace.
Our Intensive Outpatient Program (IOP) runs from our center in Lakewood, Colorado, and combines evidence-based psychotherapy with medication management and wellness activities. In particular, we have dedicated staff to closely monitor your antidepressant dose, make informed changes, and care for any symptoms you experience, including brain zaps.
We work with patience and empathy, and we support you as you progress at a pace that’s right for you.
You deserve stability, and you can take steps toward it with us. Call our admissions team when you’re ready.
Sources
[1] Gabriel, M. Sharma, V. 2017. Antidepressant discontinuation syndrome. Canadian Medical Association Journal.
[2] Papp, A. Onton, J. 2022. Triggers and Characteristics of Brain Zaps According to the Findings of an Internet Questionnaire. Primary Care Companion CNS Disord.
[3] Cleveland Clinic. 2023. Antidepressant Discontinuation Syndrome. my.clevelandclinic.org.
[4] Cortes, J. Radhakrishnan, R. 2013. A Case of Amelioration of Venlafaxine-Discontinuation “Brain Shivers” With Atomoxetine. Primary Care Companion CNS Disord.
[5] WedMD. 2025. Brain Zaps: Causes, Symptoms, and Treatment. webmd.com.
[6] Iverson, C. et al. 2026. Brain Zaps: A Case Series on Electrical Sensations Following Antidepressant Discontinuation. Consultant360.