What are benzodiazepines?
Benzodiazepines are a class of sedative medication that act on GABA receptors in the brain, producing calming, anxiolytic, muscle-relaxant and sleep-inducing effects. They include diazepam (Valium), lorazepam (Ativan), clonazepam (Rivotril), temazepam and nitrazepam, among others.
They are prescribed for anxiety disorders, panic attacks, muscle spasm, sleep problems, and as adjuncts in various psychiatric conditions. UK prescribing guidelines recommend them for short-term use only — typically two to four weeks — because of the well-established risk of tolerance and dependence. Despite this, many people have been taking them for months or years.
Why benzodiazepines cause dependence
With regular use, the brain adapts to the presence of benzodiazepines by downregulating GABA receptor sensitivity. This means the medication becomes less effective over time (tolerance), and when the medication is reduced or stopped, the GABA system is left in a state of relative underactivity — producing a rebound of the very symptoms the medication was prescribed to suppress.
This is physiological dependence, and it is not the same as addiction. It does not mean the person is weak-willed or has a character flaw. It is a predictable pharmacological consequence of sustained use.
Benzodiazepine withdrawal symptoms
Benzodiazepine withdrawal is clinically significant and, in the case of abrupt cessation of high doses, potentially dangerous. Symptoms can include:
- Rebound anxiety — often more intense than the original anxiety that prompted prescribing
- Insomnia — frequently severe and long-lasting
- Physical tremor, sweating, palpitations
- Perceptual disturbances — sensitivity to light and sound, tingling, depersonalisation
- Muscle tension and pain
- Cognitive difficulties — memory, concentration, brain fog
- Mood instability — depression, irritability, emotional dysregulation
- Seizures — in cases of abrupt high-dose cessation (this is why abrupt stopping is medically contraindicated)
Do not stop benzodiazepines abruptly
Abrupt cessation of benzodiazepines — particularly at higher doses or after long-term use — can cause seizures. This is a medical emergency. Always reduce benzodiazepines gradually under medical supervision. If you have already stopped abruptly and are experiencing significant symptoms, contact your GP or call 999 if you are having a seizure.
The Ashton Manual approach and diazepam substitution
The most widely referenced approach to benzodiazepine tapering is the Ashton Manual, developed by Professor Heather Ashton at Newcastle University. It recommends:
- Converting shorter-acting benzodiazepines (lorazepam, temazepam) to an equivalent dose of diazepam — which has a longer half-life, producing a smoother reduction profile
- Reducing the diazepam equivalent dose gradually, typically by no more than one to two milligrams every one to two weeks
- Adjusting the pace based on how the individual is responding — slowing down when symptoms are significant
- Allowing the full taper to take many months, sometimes a year or more
This approach is broadly consistent with current UK clinical guidance and remains the basis of good benzodiazepine tapering practice. The key principle in all cases is the same: slow, proportional, response-led reduction.
Key principles for stopping benzodiazepines
- Never stop abruptly — this is medically contraindicated and potentially dangerous
- Shorter-acting drugs (lorazepam) are generally converted to diazepam before tapering begins
- Reductions are made gradually — typically 5–10% of the current dose every two to four weeks
- Rebound anxiety is expected and does not mean the medication is needed permanently
- Sleep often worsens before it improves — this is normal and usually resolves over weeks to months
- The total duration of a full taper from long-term use is typically six to eighteen months or more
Who tends to find benzodiazepine reduction hardest
Some factors increase the likelihood of a more difficult withdrawal experience:
- Duration of use — particularly use beyond twelve months
- Higher doses
- Shorter-acting benzodiazepines (lorazepam, temazepam) without prior conversion to diazepam
- Previous abrupt reductions or abrupt cessation
- Co-existing anxiety disorders, where rebound anxiety is harder to distinguish from relapse
- Lack of psychological or lifestyle support alongside the taper
None of these factors makes successful reduction impossible. They simply mean the taper needs to be planned more carefully and supported more closely.
For GPs considering referral
We support patients wishing to reduce long-term benzodiazepine prescriptions where primary care feels insufficient to manage safely. Our initial assessment covers psychiatric history, current benzodiazepine use, previous reduction attempts and current stability. We develop a bespoke reduction schedule — typically including a diazepam equivalent conversion where appropriate — and monitor progress at agreed intervals. We communicate with the patient's GP throughout and can issue private prescriptions for diazepam and related medications as required.
Our approach
How we support benzodiazepine reduction
Our consultant psychiatrists have significant experience in benzodiazepine deprescribing. We provide a full psychiatric assessment, develop a bespoke taper schedule, and monitor progress closely throughout. Where appropriate, we advise on diazepam conversion, manage associated psychiatric symptoms during the taper, and issue private prescriptions as needed.
We also recognise that benzodiazepine reduction can be emotionally and psychologically demanding, and we incorporate attention to the whole person — not just the dose schedule — throughout the process.
- Full psychiatric assessment before any taper begins
- Diazepam conversion where clinically appropriate
- Bespoke reduction schedule adjusted to individual response
- Private prescriptions issued throughout
- Clear written communication to your GP at each key stage
Related reading
Benzodiazepine dependence is a physiological reality, not a personal failing.
With a careful, supported taper, most people can reduce and stop — and reclaim a quality of life that dependence often quietly takes away.