Selective serotonin reuptake inhibitors (SSRIs) are widely prescribed medications for depression and anxiety, yet many patients experience challenges when attempting to stop treatment. According to Dr. Jerrold Rosenbaum, psychiatrist-in-chief emeritus at Mass General Brigham, safe discontinuation requires a physician-supervised, gradual tapering process to avoid “antidepressant discontinuation syndrome,” which can cause physical and emotional distress.
What are SSRIs and how do they function?
SSRIs, such as Zoloft, Lexapro, and Prozac, work by increasing the availability of serotonin in the brain. Serotonin is a neurotransmitter essential for mood regulation, sleep, and appetite. By blocking the reabsorption of this chemical between nerve cells, SSRIs keep more serotonin available for neural communication. According to Dr. Rosenbaum, these medications gained popularity starting in 1990 because they generally presented fewer side effects than earlier classes of antidepressants like those targeting norepinephrine.

SSRIs are not exclusively for depression. They are frequently used to treat obsessive-compulsive disorder (OCD), panic disorder, post-traumatic stress disorder (PTSD), and various eating disorders.
Why do patients choose to stop SSRI treatment?
Patients often seek to discontinue SSRIs when they experience unwanted side effects or a decline in the medication’s effectiveness. Dr. Rosenbaum notes that long-term users may report emotional “flattening,” a state where they feel neither deep sadness nor significant joy. Common physical side effects that drive the decision to stop include weight gain, sexual dysfunction, insomnia, and chronic fatigue.
What is antidepressant discontinuation syndrome?
Abruptly stopping an SSRI can trigger antidepressant discontinuation syndrome, a collection of symptoms caused by the brain adjusting to the sudden absence of the drug. Dr. Rosenbaum reports that symptoms can include irritability, anxiety, mood swings, and insomnia. Physical manifestations may also occur, such as nausea, diarrhea, dizziness, and “electrical-like sensations” in the head. While these symptoms are rarely associated with major medical risks, they can be highly distressing for the patient.
How to safely taper off antidepressant medication
The most effective strategy for stopping SSRIs is a slow, medically supervised taper. Dr. Rosenbaum advises that while some patients can stop over a few weeks, others require a much slower schedule or a transition to an SSRI with a longer half-life to minimize withdrawal. Because the brain becomes increasingly sensitive to serotonin changes as dosage decreases, physicians often recommend making smaller, more incremental reductions during the final stages of the process.
Lifestyle stability is critical during a taper. Dr. Rosenbaum suggests prioritizing regular exercise, consistent sleep, and good nutrition. Avoiding alcohol and recreational drugs is essential, as these substances can worsen emotional instability and complicate the withdrawal process.
Frequently Asked Questions
- Can I stop taking my SSRI suddenly if I feel fine? No. Sudden discontinuation can lead to antidepressant discontinuation syndrome. Always consult your prescriber for a tapering plan.
- What are the most common withdrawal symptoms? Patients often report dizziness, nausea, irritability, anxiety, and strange electrical sensations in the head.
- How long does the tapering process take? It varies by individual. Some may taper over weeks, while others require a much longer, more gradual transition supervised by a doctor.
- Is it normal to feel “numb” on SSRIs? Yes. Some patients describe this as emotional flattening, where they feel a lack of both negative and positive emotions.
If you are considering changes to your medication, consult with your healthcare provider to develop a plan tailored to your health history. Have you navigated the process of adjusting your mental health treatment? Share your experience in the comments below or subscribe to our newsletter for more updates on mental health care and wellness.



