Citalopram withdrawal symptoms typically start within two to four days of your last dose and last one to two weeks for most people. However, the timeline varies significantly depending on how long you were taking the medication and how you stopped it. About one in five people experience symptoms lasting longer than three months, and roughly one in ten report symptoms persisting beyond a year.
The Typical Withdrawal Timeline
The acute phase of citalopram withdrawal follows a fairly predictable pattern. Symptoms appear within two to four days after your last dose, peak over the following week, and then gradually fade. For most short-term users (those who took citalopram for less than six months), withdrawal symptoms resolve in under four weeks.
If you took citalopram for longer than 24 months, your withdrawal timeline is likely to stretch considerably. Long-term users are significantly more likely to experience prolonged symptoms: 30% of long-term users report withdrawal lasting more than three months, compared to about 10.5% of short-term users. The longer your brain has adapted to the drug’s presence, the more time it needs to recalibrate once the drug is removed.
What Withdrawal Feels Like
Citalopram withdrawal produces a mix of physical and psychological symptoms that can feel alarming if you’re not expecting them. The physical side often resembles a flu: fatigue, headaches, body aches, sweating, nausea, dizziness, and light-headedness. Vivid dreams or nightmares are common. You may also notice burning, tingling, or shock-like sensations in your body.
The psychological symptoms can include anxiety, irritability, agitation, and mood swings. These overlap with the conditions citalopram is prescribed to treat, which creates a confusing question: is this withdrawal, or is my depression coming back?
Brain Zaps
One of the most distinctive withdrawal symptoms is “brain zaps,” brief electrical shock-like sensations inside your head. People describe them as a sudden jolt, like a flash of a camera in a dark room or a splash of cold water during a warm shower. They’re startling and uncomfortable but not dangerous.
The exact cause isn’t fully understood, but the leading theory involves shifts in serotonin levels and receptor sensitivity after you stop the medication. These changes disrupt electrical signaling in the brain, producing that zap sensation. Brain zaps can also trigger brief involuntary eye movements. Their duration varies widely, from a few days to several months, and they tend to be one of the last symptoms to resolve.
How Common Is Withdrawal?
Withdrawal from citalopram is not rare. A systematic review of antidepressant withdrawal found that more than half of all antidepressant users (56%) experience withdrawal effects. Studies looking specifically at citalopram reported incidence rates between 47% and 70%, depending on the study population. So if you’re experiencing withdrawal, you’re in the majority, not the minority.
Withdrawal vs. Relapse
Telling withdrawal apart from a return of depression matters because the two call for very different responses. Three markers help distinguish them. First, timing: withdrawal shows up within days of stopping or reducing the dose, while a relapse typically takes weeks, months, or longer to appear. Second, the pattern: withdrawal tends to come in waves that peak and then ease, rather than settling in as a steady, worsening low mood. Third, physical symptoms like dizziness, brain zaps, and tingling point strongly toward withdrawal. Depression rarely produces those.
If you restart citalopram and your symptoms resolve quickly (often within a day or two), that’s another strong signal it was withdrawal rather than relapse.
Why Tapering Matters
The severity and duration of withdrawal symptoms are closely tied to how you stop taking citalopram. Stopping abruptly produces the worst symptoms. A gradual taper, where you reduce your dose in steps over weeks or months, gives your brain time to adjust and significantly reduces both the intensity and duration of withdrawal.
There are two main approaches to tapering. Proportional tapering reduces your current dose by about 50% every two to four weeks. This works well for people on higher doses but can create problems at lower doses because the final reductions are still relatively large jumps for your brain. Hyperbolic tapering takes a different approach: you reduce by about 10% of your current dose every two to four weeks, with the reductions getting smaller as your dose gets lower. This method reflects the fact that small doses of antidepressants have a disproportionately large effect on brain chemistry, so the final steps need to be the gentlest.
Some people need even slower reductions, around 5% every two to four weeks. The Royal College of Psychiatrists emphasizes that any tapering plan should be treated as a starting point and adjusted based on how you actually feel. If withdrawal symptoms become too intense, the right move is smaller reductions, longer intervals between steps, or both.
The Challenge of Small Doses
One practical obstacle is that citalopram’s smallest commercially available tablet is 10 mg, which makes precise small reductions difficult with pills alone. Many people resort to crushing tablets and measuring fractions at home, but this is imprecise. Liquid formulations of citalopram allow much more accurate dosing at the tiny increments that hyperbolic tapering requires, especially in the final stages when you might be reducing from 2 mg to 1.8 mg. If your prescriber isn’t familiar with liquid options, it’s worth raising the question, particularly if previous attempts to stop have produced difficult symptoms.
The key takeaway on duration: one to two weeks is the most common window, but your personal timeline depends heavily on how long you took citalopram and how gradually you taper off. A slow, carefully managed taper is the single most effective way to shorten and soften the withdrawal process.