People often arrive in treatment with a benzodiazepine they have taken for months or years — for sleep, panic, or anxiety — and a plan that sounds simple: stop taking it. The impulse is understandable. The timing is not.

Benzodiazepines (sometimes called benzos) include medicines such as alprazolam (Xanax), clonazepam (Klonopin), diazepam (Valium), and lorazepam (Ativan). They calm the brain by increasing activity of GABA, an inhibitory neurotransmitter. That is why they work. It is also why stopping them suddenly is not a willpower problem. It is a medical one.

This article explains why a taper is used, what physical dependence is and is not, how clinicians usually approach the pace, and why combining these medicines with opioids or alcohol raises overdose risk.

Why you should not stop overnight

ASAM's joint clinical practice guideline is direct: people who have been taking a benzodiazepine for longer than a month should not discontinue it abruptly. The dose should be reduced gradually, over a period of time, under clinical supervision (ASAM).

The June 2025 summary of that guideline is equally plain. Long-term regular use — typically more than four weeks — can lead to physical dependence and to withdrawal when the dose is cut or the medicine is stopped. Benzodiazepines should not be discontinued abruptly, or reduced rapidly or by a large amount, in people who are likely to be physically dependent (ASAM).

CDC's 2022 opioid prescribing guideline, which also covers benzodiazepine safety, lists what abrupt withdrawal can bring: rebound anxiety, hallucinations, seizures, delirium tremens, and, rarely, death. The rate of any taper should be individualized (CDC).

That list is why this is not a project to run from a printout. Seizures and delirium tremens are not "bad nights." They are medical emergencies.

Physical dependence is not the same as addiction

Physical dependence means the body has adapted to the medicine. If the dose drops too fast, withdrawal symptoms appear. ASAM treats this as expected after more than a month of regular use — including when the medicine was taken exactly as prescribed (ASAM).

Addiction, or a benzodiazepine use disorder, is a different problem. It involves compulsive use despite harm. Most people who are physically dependent on a prescribed benzodiazepine do not have a use disorder. The distinction matters because it changes how the conversation starts. A taper is not a confession. It is a safety plan.

Staying on the medicine is not risk-free either. ASAM lists oversedation, falls, memory and thinking problems, overdose, and motor vehicle accidents among the harms of continued use. A taper is considered when those risks outweigh the benefits of staying on the current dose (ASAM).

How a clinician-supervised taper usually works

There is no single schedule that fits everyone. ASAM's guideline committee put it that way: there is no one-size-fits-all taper. Clinicians are advised to start slowly, use small reductions, watch for withdrawal, and change the pace based on how the person actually responds (ASAM).

The starting example in the guideline is a 5 to 10 percent reduction of the total daily dose every two to four weeks. If symptoms are hard to manage, the next cut is delayed or made smaller. People who have taken benzodiazepines for years may need a year or more (ASAM).

Those numbers belong in a conversation with a prescriber, not on a calendar you keep to yourself. ASAM warns that a rushed or poorly managed taper can cause real harm, including withdrawal that lasts, and a return of the anxiety, insomnia, or other condition the medicine was treating (ASAM).

Counseling is part of the plan, not an extra. CDC notes that cognitive behavioral therapy increases the chance a taper will succeed, and that it can be especially useful for people who are struggling with the process. If a benzodiazepine prescribed for anxiety is being reduced, CDC advises offering evidence-based psychotherapy, a non-benzodiazepine medicine approved for anxiety, or both (CDC).

Combining benzodiazepines with opioids or alcohol

Benzodiazepines and opioids both slow the central nervous system. Together they increase sedation and suppress breathing — the usual cause of overdose death. NIDA reports that in 2021, nearly 14 percent of overdose deaths involving opioids also involved benzodiazepines. A North Carolina cohort study found that the overdose death rate among patients receiving both types of medicine was 10 times higher than among those receiving opioids alone. Both prescription opioids and benzodiazepines now carry FDA boxed warnings about using them together (NIDA).

Alcohol is in the same category. NIDA groups benzodiazepines, alcohol, and other central nervous system depressants as substances that raise the risk of a life-threatening overdose when combined with opioids (NIDA).

CDC tells clinicians to use particular caution when prescribing opioids and benzodiazepines at the same time, and to weigh whether the benefits outweigh the risks. If someone already takes both, tapering decisions should be coordinated among every prescriber of a medicine that slows breathing — not made by dropping one prescription without a plan for the other (CDC).

One point CDC is explicit about: medications for opioid use disorder, including buprenorphine and methadone, should not be withheld because a person is taking a benzodiazepine. The combination raises risk, but untreated opioid use disorder can outweigh that risk (CDC).

The practical step is simple and often skipped. Tell every clinician every medicine and substance you use, including alcohol and medicines from another doctor. NIDA's advice is the same: disclose all of it, and ask how to avoid or manage the combination (NIDA).

What to ask before any dose changes

A useful appointment is specific. Bring the bottle, the dose, and how long you have been taking it.

  • Given how long I have been on this, am I likely to be physically dependent?
  • What symptoms should I report after a dose reduction, and how soon might they show up?
  • What else will we use for anxiety or sleep while the dose comes down?
  • How does this interact with any opioid medicine, alcohol, or other sedatives I take?
  • What is the plan if withdrawal becomes severe, or if the original symptoms come back?

If you have already cut the dose on your own and feel worse, say so. The next step is still a clinician, not a faster cut.

The short version

If you have taken a benzodiazepine regularly for more than a month, do not stop it on your own. Physical dependence is common and is not the same as addiction. A slow taper, adjusted to how you actually feel, is how clinicians reduce harm from both the medicine and the withdrawal. Combining benzodiazepines with opioids or alcohol raises overdose risk. None of that is a decision an article can make for you. It is a conversation with a licensed prescriber who knows your record.