Benzodiazepine Equivalence Table
benzo.org.uk : Benzodiazepine Equivalence Table http://www.benzo.org.uk/bzequiv.htm « back exit frame back to frame www.benzo.org.uk » BENZODIAZEPINE EQUIVALENCE TABLE (Benzodiazepine Equivalency Table) Revised April 2007 This Benzodiazepine Equivalence Table is based on the extensive research and clinical experience of Professor C Heather Ashton , DM, FRCP, Emeritus Professor of Clinical Psychopharmacology at the University of Newcastle upon Tyne, England. Sources: NRHA Drug Newsletter , April 1985 and Benzodiazepines: How they Work & How to Withdraw (The Ashton Manual ), 2002. The approximate equivalent doses to 10mg diazepam (Valium) are given. For a discussion of half-lives and equivalencies see also the Benzo FAQ document . 2 Approximately Half-life (hrs) Market Benzodiazepines 1 [active Equivalent Aim4 metabolite] Oral dosages (mg) 3 Alprazolam 6-12 0.5 a (Xanax, Xanor, Tafil) Bromazepam 10-20 5-6 a (Lexotan, Lexomil) Chlordiazepoxide 5-30 [36-200] 25 a (Librium) Clobazam 12-60 20 a,e (Frisium) 5 Clonazepam 18-50 0.5 a,e (Klonopin, Rivotril) 5 Clorazepate [36-200] 15 a (Tranxene) Diazepam 20-100 [36-200] 10 a (Valium) Estazolam 10-24 1-2 h (ProSom, Nuctalon) Flunitrazepam 18-26 [36-200] 1 h (Rohypnol) Flurazepam [40-250] 15-30 h (Dalmane) Halazepam [30-100] 20 a (Paxipam) 1 sur 3 01/02/2010 18:46 benzo.org.uk : Benzodiazepine Equivalence Table http://www.benzo.org.uk/bzequiv.htm Ketazolam 30-100 [36-200] 15-30 a (Anxon) Loprazolam 6-12 1-2 h (Dormonoct) Lorazepam 10-20 1 a (Ativan, Temesta, Tavor) Lormetazepam 10-12 1-2 h (Noctamid) Medazepam 36-200 10 a (Nobrium) Nitrazepam 15-38 10 h (Mogadon) Nordazepam 36-200 10 a (Nordaz, Calmday) Oxazepam (Serax, Serenid, 4-15 20 a Serepax, Seresta) Prazepam [36-200] 10-20 a (Centrax, Lysanxia) Quazepam (Doral) 25-100 20 h Temazepam (Restoril, Normison, 8-22 20 h Euhypnos) Triazolam 2 0.5 h (Halcion) Non-benzodiazepines with similar effects 1, 6 Zaleplon 2 20 h (Sonata) Zolpidem (Ambien, Stilnoct, 2 20 h Stilnox) Zopiclone 5-6 15 h (Zimovane, Imovane) Eszopiclone 6 3 h (Lunesta) (9 in elderly) 1.
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