Coming off an antidepressant safely

The short answer

Do not stop abruptly, and do not plan the reduction alone. Antidepressants are reduced in steps, with each step held long enough to see how you are before the next one, and the whole process is agreed with a doctor who knows your history. How long it takes depends on which medicine, what dose, how long you have taken it, and how previous reductions have gone.

The two questions worth answering before you start are whether now is the right time, and what the plan is if symptoms return. Coming off during a period of high stress, poor sleep or major life change is a common reason a taper fails, and the failure is usually blamed on the person rather than the timing.

If you are considering this, raise it with your GP or the prescriber managing the treatment. It is a routine conversation and they will have had it many times.

Why the reduction has to be gradual

These medicines change the availability of serotonin, and in some cases noradrenaline, at the synapse. The brain adapts to that over months. When the medicine is removed quickly, the adaptation is still in place and the system is briefly out of balance, which is what produces discontinuation symptoms.

A gradual reduction gives the adaptation time to unwind alongside the falling dose. That is the whole logic, and it explains why the last steps are often the hardest: the relationship between dose and receptor occupancy is not a straight line, so a small reduction at a low dose can be a bigger change than a large reduction at a high one. Practical tapers therefore get slower towards the end, using proportionally smaller steps rather than equal ones.

It also explains why there is no single schedule that fits everyone. The schedule is fitted to the person by observing what each step does.

Roughly how long it takes

Weeks for some people, several months for others, and occasionally longer. Someone who has taken a low dose for a few months may reduce over a few weeks. Someone who has taken a higher dose for several years, especially of a medicine with a short half-life, may need many months of small steps.

A reasonable default is to reduce, then hold for two to four weeks before the next reduction, and only move down again once the previous step has settled. If a step produces symptoms that do not settle, going back to the previous dose and reducing more slowly from there is normal practice rather than a setback.

What does not work is a fixed calendar decided in advance. The schedule is a hypothesis that gets revised by what actually happens, and any plan that cannot be slowed down is not a plan.

Discontinuation symptoms and how they differ from relapse

Discontinuation symptoms usually appear within a few days of a dose reduction, are often physical as much as emotional, and tend to improve over one to two weeks or resolve quickly if the dose is put back. Typical features are dizziness, nausea, headache, fatigue, flu-like aching, vivid dreams, irritability, anxiety and the brief electrical sensations known as brain zaps.

A relapse of depression usually comes on later, over weeks rather than days, and looks like the illness you were treated for: low mood, loss of interest, disturbed sleep and appetite, hopelessness. It does not resolve within hours of taking a dose.

The timing test is the most useful one in practice. Symptoms starting within days of a reduction and settling on returning to the previous dose point to discontinuation. Symptoms building slowly over several weeks, with the character of the original illness, point to relapse, and that needs review rather than a faster taper.

Which medicines cause more trouble

Half-life is the main driver. Medicines cleared quickly leave the system in a step, which the brain notices. Paroxetine and venlafaxine have a reputation for difficult discontinuation for that reason, and venlafaxine in particular is often reduced very slowly at the lower end.

Fluoxetine sits at the other end, with a long half-life and an active metabolite, so it effectively tapers itself to a degree and discontinuation symptoms are less common with it.

Mirtazapine, sertraline, citalopram, escitalopram and duloxetine sit between the two, with individual variation that matters more than the average. Someone who came off sertraline easily last time will probably do so again; someone who found it hard will need a slower plan.

None of these medicines is a controlled drug. Selective serotonin reuptake inhibitors, serotonin and noradrenaline reuptake inhibitors, mirtazapine, quetiapine, aripiprazole and bupropion are not in the controlled schedules, which is a different question from whether stopping them is comfortable.

Dependence is the wrong word, and why it still matters

Dependence in the addiction sense involves craving, escalating use and compulsive drug-seeking. That is not what happens with antidepressants. People do not raise their own dose to chase an effect and do not seek the medicine compulsively.

What does happen is physical adaptation, which produces symptoms when the dose falls. That is real, it is sometimes severe, and dismissing it as anxiety about stopping has done a lot of harm to people who were told their symptoms were not from the medicine.

The practical implication is that both errors are avoidable. Do not treat an antidepressant as addictive and refuse a treatment that could help. Do not treat discontinuation as trivial and stop three months of treatment over a weekend. Adaptation is expected, it is managed by the pace of the taper, and being told to expect it before starting is part of good prescribing.

Practical points while tapering

Keep a short daily note of mood, sleep and any physical symptoms. Two lines a day gives you and your doctor something better than recollection when deciding whether a step has settled.

Do not change two things at once. A dose reduction in the same week as starting a new medicine, stopping alcohol or a major change at work makes the cause of any symptom impossible to identify.

Tell someone close to you what you are doing and ask them to say if they notice a change, because the person tapering is often the last to spot a slide in mood.

And know the point at which you stop and seek help rather than pushing on: symptoms that are worsening rather than settling, or any thoughts of harming yourself. In Ireland, Samaritans can be reached free on 116 123 at any hour, Text About It is reached by texting 50808, your GP practice can see you, and in an emergency the number is 112 or 999.

Where MEDINOW fits, and where it does not

MEDINOW does not run a mental health service, does not start antidepressant treatment and does not plan or supervise a taper. Those decisions need a prescriber who can see you, who knows your history and who can review you as the dose comes down. In Ireland that is your GP, or a psychiatry service if one is involved.

What MEDINOW can do is a repeat prescription assessment, at 19.90 euro, where you are established on a stable dose of a medicine we cover and need continuity of supply, for instance while you are away from your usual practice or waiting on an appointment. Antidepressants are not controlled drugs, so they are not excluded on that basis, but a request to change a dose, to start treatment or to manage a taper will be declined.

Our model is a written medical questionnaire the doctor reads and answers in his own time. There is no video consultation, no telephone appointment and no live chat, which is precisely why a taper does not belong here. The fee covers the medical consultation, not the issuing of a document - the doctor decides after reviewing your form. If the doctor declines for medical or legal reasons, we refund the fee in full. If the doctor asks you for documentation, you have at least 7 days to provide it, and we will remind you before the deadline; if the consultation cannot be completed, we also refund the full amount.