Substance guides

Lexapro withdrawal: Brain zaps and how to taper safely

Published September 14, 2025 · 8 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals. Editorial process.

Lexapro (escitalopram) is one of the most prescribed SSRIs, and like all SSRIs, stopping it abruptly can cause a discontinuation syndrome that is distressing and sometimes debilitating. The most distinctive symptom — brain zaps — affects up to 78% of people who stop SSRIs abruptly.

What brain zaps are

Brain zaps are brief, electric-shock-like sensations that originate in the brain and sometimes radiate to the limbs. They last milliseconds but can occur dozens of times per day. They are often triggered by eye movement, sudden head turns, or transitions between waking and sleeping. The mechanism is not fully understood but likely involves serotonin receptor readjustment. They are uncomfortable, alarming, and can interfere with concentration and daily function — but they are not dangerous and do not cause brain damage.

Other discontinuation symptoms

Beyond brain zaps, Lexapro discontinuation can cause dizziness and vertigo, nausea, irritability and mood swings, insomnia or vivid dreams, flu-like symptoms (aches, fatigue, sweating), anxiety rebound, and sensory disturbances (tingling, numbness). Symptoms typically begin 2-4 days after stopping or dose reduction and can last 1-4 weeks, though some people experience prolonged symptoms for months.

Safe tapering

The key to minimizing discontinuation symptoms is gradual dose reduction. A common approach reduces the dose by 10-25% every 2-4 weeks. Lexapro is available in liquid form, allowing precise small reductions. If symptoms are severe at any step, hold at that dose longer before reducing further. Some people need 3-6 months to complete a taper. This is normal, not a sign of weakness or addiction. If your prescriber suggests stopping abruptly or insists on a rapid taper despite your symptoms, seek a second opinion from a psychiatrist experienced with SSRI discontinuation.

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Authoritative sources

This article references guidelines from: NIDA · SAMHSA · CDC · FDA · ASAM

Frequently asked questions

How long do brain zaps last after stopping Lexapro?

Brain zaps typically resolve within 1-4 weeks of stabilizing at a new dose or completing discontinuation. In some cases, they can persist for months. Gradual tapering minimizes their occurrence.

Is it safe to stop Lexapro cold turkey?

No. Stopping Lexapro abruptly can cause a discontinuation syndrome with brain zaps, dizziness, nausea, and mood disturbances. Always taper gradually under medical supervision.

How slowly should I taper off Lexapro?

Reduce by 10-25% every 2-4 weeks. If symptoms are significant at any step, hold longer before reducing further. Liquid Lexapro allows precise dose adjustments.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.