Guy the Taperman

REFERENCE

Benzodiazepine Equivalence Table (Ashton Manual)

Approximate equivalents to 10 mg diazepam (Valium), based on Professor Heather Ashton’s equivalence table — the reference most tapering communities use. Equivalences are approximate, vary between sources and between people, and half-lives vary considerably between individuals.

Not medical advice. Equivalence values differ across guidelines — always cross-check and individualise with your prescriber, especially when switching drugs (see why cross-tapering is not what you think).

Benzodiazepines

Drug (brand names)Equivalent doseHalf-life (hrs)Notes
AlprazolamXanax (worldwide), Kalma (AU), Xanor (SE/ZA), Tafil (MX/DE), Trankimazin (ES), Frontin (HU), Alpralid (IL), Helex (RU), Farmapram (MX)0.5 mg ≈ 10 mg diazepam6–12*High potency; short-acting; equivalence varies by source
BromazepamLexotan (UK/IT/AU), Lexomil (FR), Lexotanil (DE/worldwide Roche), Lexatin (ES), Lexaurin (CZ/SK), Lexilium (HR), Somalium, Rekotnil5–6 mg ≈ 10 mg diazepam10–20*Approximate; not available in US
ChlordiazepoxideLibrium (worldwide), Tropium (UK), Benpine (TH)25 mg ≈ 10 mg diazepam5–30* (+ desmethyldiazepam 36–200*)Long-acting metabolite; approximate
ClobazamFrisium (worldwide), Urbanyl (FR/CH), Urbanol (ZA), Onfi (US)20 mg ≈ 10 mg diazepam12–60*Licensed as anticonvulsant in UK; approximate
ClonazepamKlonopin (US), Rivotril (worldwide Roche), Clonex (IL), Paxam (AU), Iktorivil (SE), Antelepsin, Lonazep (IN), Petril (IN)0.5 mg ≈ 10 mg diazepam18–50*High potency; licensed as anticonvulsant in UK
ClorazepateTranxene (US/FR/UK), Tranxilium (DE/ES), Mendon (IT)15 mg ≈ 10 mg diazepamprodrug → desmethyldiazepam 36–200*Prodrug; rapidly converted to desmethyldiazepam
DiazepamValium (worldwide), Ducene / Antenex (AU), Apaurin (SI), Assival (IL), Stesolid (Scand.)10 mg ≈ 10 mg diazepam20–100* (+ desmethyldiazepam 36–200*)The reference drug for equivalence
EstazolamProSom (US), Nuctalon (FR), Esilgan (IT/ES), Eurodin (JP)1–2 mg ≈ 10 mg diazepam10–24*Sedative–hypnotic; approximate range
FlunitrazepamRohypnol (worldwide), Hypnodorm (AU), Flunipam, Narcozep (NL)1 mg ≈ 10 mg diazepam18–26* (+ desalkyl metab. 36–200*)Not available in US or some countries; Schedule 8 in AU
FlurazepamDalmane (US/UK/CA), Dalmadorm (EU/worldwide)15–30 mg ≈ 10 mg diazepamprodrug → desalkylflurazepam 40–250*Sedative–hypnotic; very long-acting metabolite
HalazepamPaxipam (US — discontinued)20 mg ≈ 10 mg diazepam(active metab. 30–100*)Prodrug; discontinued in US; approximate
KetazolamAnxon (UK — discontinued), Solatran (ZA/PT), Marcen (ES)15–30 mg ≈ 10 mg diazepam30–100* (+ desmethyldiazepam 36–200*)Approximate; not widely available
LoprazolamDormonoct (UK/EU), Havlane (FR), Sonin (DE)1–2 mg ≈ 10 mg diazepam6–12*Sedative–hypnotic; approximate range
LorazepamAtivan (US/UK/AU/CA), Temesta (FR/BE/NL/Scand.), Tavor (DE/IT/GR/CZ), Lorivan (IL/HK), Lorans (IT/GR/HK), Control (IT)1 mg ≈ 10 mg diazepam10–20*High potency; no active metabolites
LormetazepamNoctamid (worldwide), Loramet (UK), Pronoctan (FR), Ergocalm (AT)1–2 mg ≈ 10 mg diazepam10–12*Sedative–hypnotic; approximate range
MedazepamNobrium (EU — largely discontinued), Rudotel (DE)10 mg ≈ 10 mg diazepam36–200*Prodrug; long-acting
NitrazepamMogadon (worldwide), Alodorm (AU), Remnos (UK), Dumolid (DK), Numbon (IL), Eunoctin (HU/RU), Radedorm (RU)10 mg ≈ 10 mg diazepam15–38*Sedative–hypnotic; approximate
NordazepamNordaz (FR), Calmday (FR), Stilny (CZ) — also active metabolite of diazepam, clorazepate, prazepam10 mg ≈ 10 mg diazepam36–200*Active metabolite of several benzos
OxazepamSerax (US), Serepax (AU/NZ), Serenid (UK), Seresta (FR/BE/NL), Sobril (SE/NO), Adumbran (DE/AT), Alepam / Murelax (AU), Vaben (IL)20 mg ≈ 10 mg diazepam4–15*Short-acting; no active metabolites; approximate
PrazepamCentrax (US — discontinued), Lysanxia (FR)10–20 mg ≈ 10 mg diazepamprodrug → desmethyldiazepam 36–200*Prodrug; active metabolite only; approximate
QuazepamDoral (US/JP), Prosedar (PT), Quiedorm (ES)20 mg ≈ 10 mg diazepam25–100*Sedative–hypnotic; approximate
TemazepamRestoril (US), Normison (UK/AU/EU), Euhypnos (UK/AU/IE), Temaze / Temtabs (AU), Remestan (DE/AT), Planum (DE), Tenox (FI/IE)20 mg ≈ 10 mg diazepam8–22*Sedative–hypnotic; approximate
TriazolamHalcion (worldwide), Apo-Triazo (CA), Hypam (AU — discontinued)0.5 mg ≈ 10 mg diazepam2* (some sources: 1.5–5**)Very short-acting; high potency

Non-benzodiazepines with similar effects (Z-drugs)

Drug (brand names)Equivalent doseHalf-life (hrs)Notes
ZaleplonSonata (US/UK), Starnoc (CA — discontinued), Andante (EU)20 mg ≈ 10 mg diazepam2* (~1 hr more precisely**)Z-drug; ultra-short-acting
ZolpidemAmbien (US), Stilnox (AU/UK/EU), Stilnoct (UK), Dormizol / Somidem (AU), Sublinox (CA), Sanval (PL), Zolsana (various)20 mg ≈ 10 mg diazepam2* (~2–3 hrs more precisely**)Z-drug; short-acting
ZopicloneImovane (CA/EU), Zimovane (UK/IE), Zopitan (IL), Zileze (UK), Dopareel, Rhovane (CA)15 mg ≈ 10 mg diazepam5–6* (3.5–6.5 hrs**)Z-drug; short-acting; not available in US (eszopiclone is)
EszopicloneLunesta (US); S-enantiomer of zopiclone3 mg ≈ 10 mg diazepam6* (9 in elderly*)Z-drug; longer-acting; US-marketed form of zopiclone

The 0.5 mg jump rule

The Ashton Manual’s guidance for finishing a benzodiazepine taper is to stop (“jump”) from about 0.5 mg diazepam-equivalent — read your drug’s row above to convert. Lower is possible and generally gentler. The free taper calculator applies this conversion automatically when you pick your drug.

Half-life key: time for blood concentration to fall to half its peak value after a single dose. Varies considerably between individuals. Active metabolite half-lives shown in brackets where relevant.
* Ashton: Ashton CH. Benzodiazepine Equivalence Table, benzo.org.uk (revised April 2007); based on NRHA Drug Newsletter 1985 and Benzodiazepines: How They Work & How to Withdraw (The Ashton Manual, 2002).
** Pharmacological literature: Zaleplon ~1 hr (Drover 2004, Clin Pharmacokinet); Zolpidem ~2–2.6 hrs; Zopiclone 3.5–6.5 hrs; Triazolam 1.5–5 hrs (various pharmacokinetic references).
Sources and equivalence values may differ across guidelines. Always cross-check and individualise. This table is provided for informational purposes; the author makes no warranty as to accuracy and accepts no liability for decisions made using it.

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Educational information only — not medical advice. Never change your medication without a qualified prescriber.
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