Stopping Antidepressants Safely: Tapering and Discontinuation Symptoms

You have felt well for a while and you are thinking about coming off your antidepressant. Or you tried to stop and felt dizzy, foggy, and irritable within days. Both situations are common. This guide explains why stopping can cause symptoms, how often it happens, and how clinicians plan a safe taper.

Why stopping can cause symptoms

Your brain adapts to an antidepressant over months of use. When the drug level drops quickly, the brain needs time to readjust. During that time, you may get discontinuation symptoms (also called withdrawal symptoms). These are different from addiction. You do not crave the drug, but your body reacts to the change.

Common symptoms include:

• Dizziness or light-headedness
• Brain zaps, which are brief electric-shock feelings
• Nausea or upset stomach
• Flu-like feelings, such as aches and tiredness
• Trouble sleeping or vivid dreams
• Irritability, anxiety, or low mood
• Feeling unsteady or off balance

Symptoms usually start within a few days of stopping or lowering the dose.

How common are they?

Estimates vary widely between studies. A 2024 review pooled 79 studies and found that about 31 percent of people stopping an antidepressant had at least one discontinuation symptom [1]. But about 17 percent of people stopping a placebo also reported symptoms, likely from expectations or normal ups and downs. That leaves about 1 in 6 or 7 people with symptoms caused by stopping the drug itself. Severe symptoms affected roughly 1 in 35 people [1].

Risk is higher with:

• Drugs that leave the body quickly, such as paroxetine and venlafaxine
• Higher doses and longer use
• Stopping suddenly rather than tapering

Fluoxetine leaves the body slowly, which may act as a natural taper.

What your doctor looks at

Is it the right time?

Before planning a stop, clinicians consider how long you have been well and your risk of relapse. CANMAT (Canadian) guidelines recommend continuing treatment for 6 to 12 months after symptoms resolve, and longer for people with risk factors such as repeated episodes [5].

The ANTLER trial tested this in UK primary care. Adults who had been on an antidepressant for at least 9 months and felt well were randomly assigned to keep taking it or to taper to placebo [4]. Over one year, depression returned in 56 percent of those who stopped, compared with 39 percent of those who continued [4]. This shows that stopping is reasonable for many people, but relapse risk is real.

How the taper is planned

The UK NICE guideline (NG222) recognizes that withdrawal symptoms can sometimes be severe and long-lasting [3]. It recommends:

• Reducing the dose in steps, usually over weeks or months
• Making smaller reductions as the dose gets lower
• Taking into account the drug, dose, and how long you have taken it
• Agreeing on a plan with your clinician and reviewing it if symptoms appear

Researchers have proposed hyperbolic tapering [2]. This means cutting the dose by a similar share each time, such as a quarter or half of the current dose, rather than by the same fixed amount. The final small steps may be the hardest. Tiny doses may need a liquid form or specially made tablets, which a pharmacist can help with.

Withdrawal or relapse?

Clinicians look at timing and type of symptoms:

• Discontinuation symptoms often start within days, include physical symptoms like dizziness and brain zaps, and ease if the drug is restarted.
• Relapse of depression usually builds more slowly, over weeks, and looks like your original symptoms.

Canada and US differences

Health Canada product monographs and FDA labels both warn against stopping suddenly and advise a gradual dose reduction. Neither gives a single taper schedule for all patients. Dose forms differ by country, so the options for small steps may also differ.

Tips for a smoother taper

• Choose a stable period in your life, not a time of major stress.
• Track your mood and symptoms each day.
• Keep up therapy, exercise, and sleep routines, since these support your mood during the change.
• Let someone close to you know your plan.
• If symptoms are hard, ask your clinician about holding at the current dose or going more slowly.

Questions to ask your clinician

• Is now a good time for me to stop, given my history?
• What is my risk of the depression coming back?
• How fast should I taper my specific medication?
• What symptoms should I expect, and when should I call you?
• If symptoms are severe, can we slow the taper or go back up?
• Do I need a liquid form or smaller tablets for the final steps?
• Would therapy during and after the taper lower my relapse risk?

When to get care quickly

Get help right away if you have thoughts of suicide or self-harm while stopping or after you stop. In Canada and the US, call or text 988. Call 911 or go to the emergency department if you are in danger. Also seek urgent care for severe confusion, fainting, or symptoms that stop you from caring for yourself.

Bottom line

Many people can stop an antidepressant safely with a slow, planned taper. Discontinuation symptoms are common but are usually mild and short. Some people have more severe or lasting symptoms, and relapse is a real risk, so timing and follow-up matter. Never stop suddenly; make the plan with your clinician or pharmacist.

Primary AI can show you the guideline and study sources behind this topic in plain language, so you can bring better questions to your appointment.