Does Exercise Help during a Benzodiazepine Taper?

Exercise helps during a benzodiazepine taper, within limits.

Patients tapering off of a benzodiazepine ask Dr. Mark Leeds this question at nearly every stage, and the honest answer is yes, within limits. In his experience, gentle and regular movement makes withdrawal days more tolerable: sleep comes a little easier, mood lifts a little, clenched muscles loosen, and the body’s stress response settles sooner after a bad hour. The Ashton Manual says the same in Chapter III: “Regular moderate exercise is recommended during withdrawal as it maintains general fitness, builds up stamina, increases the circulation to brain, muscle and skin and improves mood.”

Yet, the limits matter as much as the benefit. A person who took a benzodiazepine exactly as prescribed and now cannot stop without symptoms has a medical condition caused by the medication. Physical dependence is not addiction. The treatment that fits it is a gradual, medically supervised taper over months, and exercise is a support to that taper, never a substitute for it and never a way to hurry it.

So, why do so many patients find that the workout that once calmed them now sets off a wave of symptoms?

Why does a workout that used to help now set off symptoms?

Benzodiazepines, and z-drugs such as zolpidem (Ambien), act on the receptor for gamma-aminobutyric acid (GABA), the brain’s main calming signal. Over months of use the brain adapts, and during a taper the calming side runs weak while the alarm side runs strong. Movement does not repair that, and Dr. Leeds makes no larger claim for it than the Manual does.

What movement does change is how a day feels, for better and sometimes for worse. Many patients find that their exercise tolerance drops during a taper and stays low in protracted withdrawal, the months, and sometimes longer, of symptoms that can follow the last dose. A run that was easy a year ago now brings a pounding heart, sweating, shaky legs, dizziness, and a wave of anxiety that can last the rest of the day.

Chapter III of the Manual lists “palpitations, pounding heart, rapid pulse, flushing, sweating, and breathlessness” among the heart and lung symptoms of withdrawal, and exertion produces every one of them on purpose. A nervous system in withdrawal behaves like a smoke detector wired too sensitive, so that toast sets it off. Exertion raises the heart rate and adrenaline in everyone, and a calm nervous system reads that as effort, but a withdrawing one reads it as fire.

While this is not a perfect analogy, it explains why a brisk walk can end in a panic attack that has nothing to do with fitness. The tell is proportion: withdrawal sensations arrive out of scale with the effort and linger after rest. The fix is not a harder workout. It is less smoke: shorter sessions, a slower pace, and a stop before the alarm sounds.

Start low, stop early, and take rest days.

Walking, swimming, stretching, a stationary bike, light yoga, and tai chi are the activities Dr. Leeds sees patients tolerate best. Professor C. Heather Ashton counted “moderate exercise, hot baths, massage and general relaxation exercises” among the measures that ease muscle symptoms, and she added that there is no point in “slavishly doing exercises” that a person hates. Her advice for protracted symptoms is the rule: find an exercise that is enjoyable, “start at low level, work up gradually and keep it up regularly.”

Low means minutes rather than an hour, at a pace where talking stays easy, and the scale is the day, not the plan. On a good day the walk can be longer, on a bad day the walk to the mailbox counts, and if a flare follows, the next session is shorter rather than harder.

Stopping early is a skill. The moment symptoms spike, the session ends without a last push, and the next day is a rest day. Slow, deep breathing, which the Manual recommends for palpitations, settles the alarm faster than sitting rigid and waiting.

Exercise does not make a taper go faster.

Patients sometimes hope that a good month of workouts has earned a bigger dose cut. It has not. Chapter II of the Ashton Manual is plain about it: “The precise rate of withdrawal is an individual matter,” and the patient “must be in control and must proceed at the pace that is comfortable.”

The shape of a sound taper does not change with a gym membership: the Manual suggests reducing by “up to one tenth” of the dose at each step, with holds whenever symptoms demand them, and the Maudsley Deprescribing Guidelines describe hyperbolic reductions, cuts that get smaller as the dose gets lower. Movement makes the months more livable. It does not shorten them. In fact, a rough week after a workout is more often a reason to hold than a reason to push on.

Patients tapering off of Xanax need one extra caution.

Xanax, or alprazolam, is a short-acting benzodiazepine. Table 1 of the Ashton Manual gives its half-life as 6 to 12 hours, against 20 to 100 hours for diazepam (Valium), so its blood level rises and falls several times a day and many patients feel withdrawal between doses, known as interdose withdrawal. A workout timed at the low point between doses can bring on palpitations and sweating that look like exertion and are not.

The short action also makes a smooth reduction hard, which is why Chapter II advises switching to a long-acting benzodiazepine such as diazepam. Dr. Leeds uses this crossover taper when it helps a patient, and he never advises an abrupt stop: in September 2020 the United States Food and Drug Administration (FDA) updated the boxed warning on every benzodiazepine label to say that stopping suddenly or reducing too fast can cause life-threatening withdrawal reactions, including seizures. A seizure is a medical emergency, and the right response is to call emergency services.

When should a patient check with the prescriber first?

Anyone with a history of heart disease, high blood pressure, or fainting, anyone whose dizziness is already a daily symptom, and older adults, for whom a taper and a new exercise habit each raise the risk of a fall, should check with the prescriber before the first session. Shorter or seated sessions are a reasonable place to start.

During the taper, breathlessness out of proportion to the effort, dizziness that is new or worse, or a flare that lasts into the next day is a reason to stop and call the prescriber the same day. Chest pain, a faint, or a seizure is a medical emergency, and the right response is to call emergency services. And, low mood in withdrawal can deepen without warning, so anyone having thoughts of suicide should call or text 988, the Suicide and Crisis Lifeline, or call emergency services right away.

In Dr. Leeds’ practice, exercise is a support, not a treatment.

Dr. Leeds is an osteopathic physician and deprescribing specialist in Fort Lauderdale, Florida, and his concierge practice offers one service: medically supervised benzodiazepine and z-drug tapering, by telemedicine throughout Florida, with one physician working directly with every patient. A flare after a workout is information about the pace of the taper, not a failure by the patient. The taper follows the Ashton Manual, with a crossover taper to diazepam where it helps, at a pace the patient sets and may change at any time.

Unfortunately, many patients arrive having been told that exercise would fix withdrawal, or that a flare after a workout meant weakness. Fortunately, a gradual taper in Dr. Leeds’ practice expects the flare, adjusts for it, and keeps every decision with the patient. Contact Dr. Leeds to ask about a medically supervised taper in Florida.

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.