Alprazolam and other benzodiazepine withdrawal

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Pharmaceutical Services Branch

Alprazolam and other benzodiazepine withdrawal

A resource for Western Australian medical practitioners

Introduction

It is important to ensure that the patient is supported when choosing to withdraw him/her off benzodiazepines. Patients who are assessed as requiring withdrawal and who have substance abuse issues may need to be referred for specialist advice.

Patients who aim to withdraw from benzodiazepines generally fall into one of two categories:

1. Patients who use benzodiazepines for therapeutic purposes only and do not misuse their prescriptions. These patients generally have been prescribed benzodiazepines for a length of time.

1,2 These patients can be managed by their general practitioner.

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2. Patients who use benzodiazepines erratically in high doses, with other drugs

(polysubstance user). These patients may misuse their prescriptions or use illicit benzodiazepines.

1, 2 These patients are best managed by practitioners with expertise in addiction medicine.

Objective of withdrawal

The aim of benzodiazepine withdrawal is to provide the patient with a minimum supply of medication to prevent severe withdrawal, and to gradually reduce the amount taken.

Benzodiazepine withdrawal requires careful planning due to the risk of a withdrawal syndrome occurring.

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Withdrawal treatment guidelines

 Where possible transfer a patient to a long acting benzodiazepine e.g. diazepam. See

Appendix 1 for comparative doses of benzodiazepines.

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 Patients with polydrug use or on high benzodiazepine doses (approximately greater than

40mg of diazepam equivalence) may require management under specialist supervision.

 Any underlying, independent disorder such as mood or anxiety should be treated concurrently.

 If converting a patient to another benzodiazepine prior to withdrawal, ensure the patient is stable on the chosen benzodiazepine before commencing dose reductions.

 Dose reduction should be gradual, approximately every one to two weeks. Dose reductions will vary between patients.

 Pro re nata (PRN) doses should not be prescribed.

Do not continue to reduce benzodiazepine dose if patient is experiencing withdrawal symptoms. Stabilise the patient at the dose at which withdrawal symptoms are experienced before commencement of further dose reductions.

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Pharmaceutical Services Branch

 Ensure that adequate records are documented in patient notes of each prescription issued, to maintain a tight control on when renewal prescriptions are due, to prevent overprescribing.

 Limited dispensing such as daily or weekly dispensing may be warranted for patients who require an increase in frequency of prescriptions.

This is an effective strategy to control medication intake.

 Implement a benzodiazepine treatment agreement to clarify conditions and goals of treatment. The Department has developed a Treatment Contract which incorporates those benzodiazepines which are Schedule 8 (S8) medicines (alprazolam and flunitrazepam).

This contract may be used as a guide to the development of individual patient treatment contracts.

Where to refer/seek further advice on withdrawal

For complex polysubstance abuse patients, specialist advice may be necessary from:

 local addiction medicine specialist

 Clinical Advisory Service – a telephone service provided by specialist clinicians at Next

Step Specialist Drug and Alcohol Services, available 24 hours a day seven days a week. Telephone (08) 9442 5042 or 1800 688 847

 psychiatrist.

For legislative matters pertaining to the prescribing, supply and dispensing of S8 benzodiazepines and other S8 medicines, contact:

 Pharmaceutical Services Branch of the WA Department of Health, available Monday to

Friday, 8.30am

– 4.30pm. Telephone

(08) 9222 4424.

To check if a patient is obtaining benzodiazepines prescriptions including other prescription medicines subsided by the Pharmaceutical Benefits Scheme, contact:

Medicare Australia Prescription Shopping program, available 24 hours a day, seven days a week. Telephone 1800 631 181.

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Pharmaceutical Services Branch

Appendix 1: Comparative doses of benzodiazepines

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Generic name

Duration of action

Approximate equivalent dose to diazepam 5mg

Trade names

Alprazolam

Bromazepam

Clobazam

Short

Intermediate

Long

0.5mg

3mg

10mg

Alprax, Kalma, Xanax*,

Ralozam

Lexotan

Frisium

Clonazepam Long 0.25mg

Diazepam

Flunitrazepam

Lorazepam

Long

Long

Intermediate

5mg

0.5mg

1mg

Rivotril, Paxam

Antenex, Ducene,

Ranzepam, Valium,

Valpam

Hypnodorm

Ativan

Nitrazepam Long 5mg

Oxazepam

Temazepam

Triazolam

Short

Short

Very short

15mg

10mg

0.25mg

Alodorm, Mogadon

Alepam, Murelax,

Serepax

Normison, Temaze,

Temtabs

Halcion

*Xanax was discontinued from 1 December 2013.

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Pharmaceutical Services Branch

References and further resources

1. Kenny P, Swan A, Berends L, Jenner L, Hunter B, Mugavin J. Alcohol and Other Drug

Withdrawal: Practice Guidelines Fitzroy, Victoria: Turning Point Alcohol and Drug

Centre; 2009.

2. Lingford-Hughes A, Welch S, Peters L, Nutt D. BAP updated guidelines: evidencebased guidelines for the pharmacological management of substance abuse, harmful use, addiction and comorbidity: recommendations from BAP. Journal of

Psychopharmacology. 2012;0(0):1-54.

3. NSW Department of Health. NSW Drug and Alcohol Withdrawal Clinical Practice

Guidelines. NSW Department of Health ; 2008.

4. Cementon E.Alcohol and Other Drug Withdrawal Practice Guidelines: Acute Inpatient and Residential Services. Melbourne, Victoria: North Western Mental Health; 2011

5. Australian Medicines Handbook. Diazepam: Benzodiazepine withdrawal 2013 [August

12, 2013]. Available from: www.amh.net.au/online/view.php?page=chapter18/monographdiazepam.html#diazepam

6. Therapeutic Guidelines Limited. eTG complete: ‘Benzodiazepines, zolpidem and zopiclone: problem use’ 2013]. Available from www.tg.org.au/index.php?sectionid=71 .

Further reading

National Prescribing Service. Helping patients withdraw 1999 [August 12, 2013].

Available from: http://www.nps.org.au.eplibresources.health.wa.gov.au/__data/assets/pdf_file/0020/157

61/news04_benzodiazepines_0699.pdf

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