Why does a slow benzodiazepine taper work when a fast one fails?
The answer is that your nervous system spent months or years adapting to the medication, and it cannot adapt back in a week. It needs time. How much time is something that only your own body can report.
Maybe you have already lived through the fast version. Maybe a doctor cut your Xanax (alprazolam), Klonopin (clonazepam), Ativan (lorazepam), or Valium (diazepam) in half and told you that you would be fine in a couple of weeks. Or, maybe you were sent to a detox unit and came home feeling worse than when you went in.
If so, you did not fail the taper. The taper failed you. So, why are so many people still taken off of these drugs on a schedule measured in days?
Your brain adapted to the medication, and it needs time to adapt back.
Benzodiazepines work by strengthening the signal of gamma-aminobutyric acid, or GABA, the main calming chemical messenger in the brain. They do this at a site known as the GABA-A receptor. For a while, the result is calm, sleep, and relaxed muscles.
When that stronger signal arrives every day, the brain adjusts. The likely explanation is that the brain reduces the number and the sensitivity of its GABA-A receptors, a change known as downregulation, while the excitatory side of the nervous system turns itself up to compensate. After months or years, the medication is no longer an extra. It is part of how your nervous system keeps its balance.
This is physical dependence, and it can happen to anyone who takes a benzo every day as prescribed. If the drug is taken away faster than the receptors can recover, the calming signal is too weak while the excitatory signal is still turned up. That gap is withdrawal. While we do not know exactly how fast the receptors recover in any one person, we do know that they do not follow a calendar.
Unfortunately, the detox and rehab model runs on a calendar.
Detox units and rehabs are built for short stays. The length of the stay is usually set by what the insurance company will cover, which may be 7, 10, 14, or 30 days, and the goal is for the patient to be off of everything by discharge. The nervous system does not read the insurance policy.
Over the years, I have heard the same story from many patients. They were taken off of a benzo in a week or two, the chart said that the detox was completed successfully, and they went home. Then, the worst symptoms of their lives arrived, and they were told that it was only their anxiety coming back.
The deeper problem is that the rehab model assumes the patient has an addiction. Physical dependence is not addiction. In fact, most people who need a benzo taper took their medication exactly as their doctor prescribed it, and what they need is a gradual medical taper, not a recovery program.
While I am critical of the model, I do not doubt that many people who work in these facilities care about their patients. And, people who do have an addiction deserve respect and real medical treatment as well. Yet, a fast taper is the wrong tool for benzodiazepine dependence, no matter who is holding it.
What happens when a benzo is stopped too fast?
Stopping a benzodiazepine abruptly, or cold turkey, is dangerous. It can cause seizures, and it should never be attempted. From the point of view of the nervous system, a rapid taper over days or a few weeks is not much different.
Call 911 or go to an emergency department if you or someone near you has a seizure, becomes confused or starts to hallucinate, or has thoughts of self-harm. If you are having thoughts of suicide or are in a mental health crisis, you can also call or text 988, the Suicide and Crisis Lifeline, at any time.
Beyond the immediate danger, a fast taper may raise the risk of protracted withdrawal, meaning symptoms that last for months or longer after the last dose. You may also see this group of symptoms called benzodiazepine-induced neurological dysfunction, or BIND. It can include severe insomnia, surges of adrenaline, burning skin, a terrifying inner restlessness, and the fear that something is permanently broken.
In most cases, nothing is permanently broken. These are regulating systems, and they can recalibrate with time.
In 2020, the US Food and Drug Administration (FDA) updated the boxed warning on every benzodiazepine to include physical dependence and withdrawal reactions, including seizures, and the labels now call for a gradual taper. The official paperwork finally agrees with what patients had been saying for decades.
A slow taper is like a diver coming up from deep water.
An analogy that might help is to think of a scuba diver who has spent a long time at depth. The diver’s body has adjusted to the pressure down there. Is the fastest way to the surface the best way? Of course not.
A diver who shoots straight up can be badly injured, even though the surface is exactly where they want to be. So, divers come up slowly, and they stop along the way to let the body catch up. No one watching from the boat calls those stops a sign of weakness.
Interestingly, the last stretch before the surface is where the pressure changes the most in proportion, so careful divers go slowest there. While this is not a perfect analogy, the lesson carries over. The goal is not to get off of the medication fast. The goal is to arrive intact.
Why do the last steps of a taper feel larger than they are?
This is a good question, and the answer surprises many people. You might expect a taper to get easier as the dose gets smaller. Often, the opposite happens.
The relationship between the dose and its effect at the receptors is not a straight line. At higher doses, the receptors are already well covered, so taking away a piece of the dose changes little. At low doses, each small piece is doing a large share of the work.
That means that a cut that looks tiny on paper can be a big change to the brain. The Maudsley Deprescribing Guidelines describe the solution, known as hyperbolic tapering, where each reduction is sized in proportion to the current dose, so the steps get smaller as the dose gets lower. This is why liquid formulations from a compound pharmacy are often used near the end. A pill cutter can only do so much.
Holding a dose is not failing.
Many people believe that pushing through a taper quickly shows strength. It does not. A nervous system that is pushed too hard often becomes less stable, not more.
When symptoms spike after a reduction, that is information. Your nervous system is telling you that the last step was too large or came too soon. The protective response is to hold at the current dose until things settle, and then to continue with smaller steps.
Recovery also does not move in a straight line. Patients often describe windows, which are stretches of feeling much better, and waves, where the symptoms return for a while. A wave during a hold does not mean that the taper is failing. With time, the windows tend to get longer.
Where does the slow taper principle come from?
I did not invent any of this. The late Professor C. Heather Ashton of Newcastle University ran a benzodiazepine withdrawal clinic for years, and the Ashton Manual is the record of what she learned there. Professor Ashton taught the crossover taper, meaning a gradual switch to the long-acting benzodiazepine, Valium, followed by slow reductions with the patient in control of the pace.
The Maudsley Deprescribing Guidelines arrive at the same place from the pharmacology, with proportional reductions that are adjusted to how the person responds. I favor the Ashton approach, and I have a lot to say about it on the show. Yet, it is not the only safe method. Micro-tapering, liquid tapers, and tapering the original medication can all work, as long as the taper is gradual, medically supervised, and patient directed.
If you want to hear more, I spoke with Barbara Connolly, PhD, about safe benzodiazepine tapering and the Benzo Warrior community. I also spoke with Christy Huff, M.D., about the Benzodiazepine Information Coalition, where I serve on the medical advisory board.
How long will a taper take, and who decides?
I cannot tell you how long your taper will take, and I would be suspicious of anyone who claims to know in advance. Most tapers take many months. A year is reasonable for many people, and some tapers take longer, because the timeline adapts to how your body responds.
You may have good reason to be wary of doctors. It was, after all, a doctor’s prescription and a doctor’s assurance that the medication was safe for long-term use that put you here. Still, a taper should always be medically supervised, so work with your prescriber, and look for one who listens.
In a good taper, the patient sets the pace. If the reductions are too fast, the doctor must slow them down, and if you are doing well, you and your doctor may agree to go a bit faster, as tolerated. No one should push you down faster than your nervous system can follow.
Your nervous system adapted to a medication, and it can adapt back. Give it the time that it asks for.
Readers who want to work with Dr. Leeds can use the contact page.
This article is educational. It is not medical advice, and reading it does not create a doctor-patient relationship. Decisions about starting, continuing, or tapering any medication should be made with your own physician.