Tapering Down Venlafaxine (Efexor-XR): An Updated, Safer Guide

Updated October 2026 (see correction note below)

Venlafaxine (Efexor-XR, also sold as Effexor overseas) is a helpful medicine for depression and anxiety, and in women's health it is sometimes used to ease hot flushes and night sweats. When it is time to come off it, the way you reduce it matters a great deal. Done slowly and in the right way, most people can stop comfortably. Done too quickly, or by skipping days, it can make people feel very unwell.

This guide explains what current evidence and guidelines recommend, so you can have an informed conversation with your doctor. It is general information only and not a substitute for an individual plan.

Why venlafaxine needs extra care

• It leaves the body quickly. Venlafaxine has a short half-life of about 5 hours, and its active form (desvenlafaxine) about 11 hours. Blood levels fall a lot within a single day, so a missed or delayed dose can bring on symptoms within hours to a day.

• It is one of the higher risk antidepressants for withdrawal. Australian deprescribing guidance places venlafaxine in the highest withdrawal risk group, alongside desvenlafaxine, duloxetine and paroxetine. The Royal College of Psychiatrists also singles it out as needing particularly careful tapering.

• Extended release helps, but it is not a safety net. The XR form releases the medicine slowly through the day, which smooths out levels. It does not make skipping days safe.

  
  

The key principle: lower the daily dose, never skip days

Taking venlafaxine every second or third day makes the amount in your body swing up and down. Each gap can act like a small withdrawal, often with dizziness, brain zaps, nausea and anxiety, and then the next dose briefly settles it again. The Royal College of Psychiatrists advises against missing doses on some days for most antidepressants for exactly this reason.

Instead, current guidance recommends:

• Take a dose every day, at a gradually lower amount.

• Reduce in steps over weeks to months. NICE (UK, 2022) advises reducing gradually in stages with your doctor's guidance, and Australian guidance suggests starting with reductions of around 25% of the current dose, every few weeks to a month.

• Make the steps smaller as the dose gets lower. This is called proportionate or hyperbolic tapering. The brain is most sensitive to changes at low doses, so going from 37.5 mg to nothing is a much bigger change for your brain than going from 150 mg to 112.5 mg. Some sensitive people need reductions of only 5 to 10% at a time.

• Let each step settle before the next one. Usually at least 2 to 4 weeks, and longer if needed. Move on only when any withdrawal symptoms have gone or are easily manageable.

  
  

What a gentle taper might look like

This is an illustration of the shape of a slow, proportionate taper, not a prescription. Your doctor will tailor the steps and timing to you.

Starting at 150 mg daily, a taper might move through 112.5 mg (a 75 mg plus a 37.5 mg capsule), then 75 mg, then around 56 mg, then 37.5 mg, then smaller steps such as about 28 mg, 20 mg, 14 mg, 10 mg, 7 mg and 5 mg before stopping. Each step is taken every day and held for at least a few weeks. For many people the whole process takes several months, and the last part is often the slowest. That is completely normal.

Getting the smaller doses in Australia

• Combining capsules. Venlafaxine modified release capsules come in 37.5 mg, 75 mg and 150 mg, which can be combined for in-between doses down to 37.5 mg.

• Compounded doses. Below 37.5 mg, a compounding pharmacist can make custom dose capsules or a liquid on prescription. Ask your pharmacist early, as it can take time to arrange.

• Please don't open, crush or split extended release capsules or tablets yourself unless your pharmacist has shown you a safe way for your specific brand. This can release the medicine too quickly.

• Other options. In some situations your doctor may talk with you about other strategies, such as changing to a longer acting medicine before tapering. This needs individual medical advice.

For GPs and pharmacists: the University of Queensland RELEASE trial tapering plans, recognised by the RACGP as an Accepted Clinical Resource, include hyperbolic regimens for 15 antidepressants at three different speeds.

Withdrawal symptoms to watch for

• Dizziness, vertigo and balance problems

• Electric shock sensations, often called brain zaps

• Nausea, headaches and flu-like symptoms

• Anxiety, irritability, agitation and poor sleep or vivid dreams

• Sweating, tiredness and difficulty concentrating

These symptoms can be strong enough to interfere with daily life, and they are sometimes mistaken for the original condition coming back. A helpful clue is timing: withdrawal symptoms usually start within hours to days of a dose change, while a relapse tends to come on more gradually, over weeks.

If symptoms are hard to manage, the usual approach is to go back to the last dose that felt okay, wait until you feel settled, and then try a smaller reduction or a longer gap between steps. Talk to your doctor before doing this.

Planning before you start

• Choose a time when your mood has been stable and life is reasonably settled.

• Agree a written plan with your prescriber, including review appointments.

• Your plan should consider your current dose, how long you have taken venlafaxine, the formulation, and any past withdrawal experiences.

• Keep a simple daily symptom diary so you and your doctor can see patterns.

• Never let yourself run out of medicine. Refill early, especially before weekends and holidays.

  
  

A note for women in perimenopause and menopause

Venlafaxine is sometimes prescribed for hot flushes and night sweats, especially when hormone therapy is not suitable or not wanted. As the dose comes down, flushes may return. Some withdrawal symptoms, such as sweating, poor sleep, irritability, anxiety and brain fog, also overlap with perimenopause symptoms, which can make it hard to tell what is going on. Tracking your symptoms helps, and it is worth discussing your options for managing menopause symptoms with your doctor before or during a taper.

Looking after yourself along the way

Regular movement, good sleep habits, stress management, time outdoors and leaning on supportive people all help. Psychological support such as counselling can be valuable, both during the taper and afterwards.

When to get help promptly

Contact your GP or prescriber quickly if symptoms are severe, you are struggling to function, or your mood is dropping. If you ever have thoughts of harming yourself, please seek help straight away: call 000 in an emergency, or Lifeline on 13 11 14, any time of day or night.

The science, simply explained

Venlafaxine is a serotonin and noradrenaline reuptake inhibitor (SNRI). Over months of use, the brain adapts to having more of these chemical messengers around, for example by adjusting how sensitive its receptors are. These adaptations take time to reverse. When the medicine is reduced faster than the brain can readjust, the gap shows up as withdrawal symptoms.

Because venlafaxine and its active form are mostly cleared from the body within about two to three days, skipping a day lets levels drop sharply, and then the next dose pushes them back up. A slow, steady daily reduction gives the brain time to adjust gently instead.

Correction note: An earlier version of this article included example schedules that spaced out venlafaxine doses, such as taking it every second or third day. This is not safe for venlafaxine and has been removed. If you started skipping days because of it, please don't make any further changes on your own. Contact your GP, prescriber or pharmacist soon for advice about your own situation.

References and further reading

• NICE guideline NG222: Depression in adults, treatment and management (2022)

• Royal College of Psychiatrists: Stopping antidepressants

• Quality Use of Medicines Alliance: Antidepressants deprescribing clinical guide (2024)

• Medical Journal of Australia: Antidepressant prescribing in Australian primary care, time to reevaluate (2025)

• Horowitz MA, Taylor DM. The Maudsley Deprescribing Guidelines. Wiley Blackwell, 2024.

• Horowitz MA, Taylor D. Tapering of SSRI treatment to mitigate withdrawal symptoms. Lancet Psychiatry, 2019.

This article is general health information and is not a substitute for personal medical advice. Please do not change or stop any medicine without speaking with your doctor or pharmacist.

By Dr Purity Carr

GP with a special interest in menopause

#drpuritycarr on FB and Instagram

Harvey, WA 6220