Benzodiazepine Conversion Calculator

Your details

The benzodiazepine you are currently taking or converting from.
The dose of the source drug in milligrams.
mg
The benzodiazepine you want the equivalent dose for.
Equivalent dose
20mg

Equipotent dose of the target drug

Diazepam equivalent20mg
Source relative potency0.1
Target relative potency1
Diazepam equivalent (mg)20
Target drug dose (mg)20

2 mg Ativan = 20.00 mg Valium

  • 2 mg of Ativan is equivalent to 20.00 mg of Valium by standard diazepam-pivot equivalence.
  • The diazepam reference dose (pivot) is 20.00 mg, using Ativan's equivalence factor of 1 mg per 10 mg diazepam.
  • Note: Ativan is intermediate-duration (10-20 h) while Valium is long-duration (20-100 h). Duration mismatch requires careful clinical management during transition.
  • Ativan: Commonly used in inpatient/ICU settings.
  • Valium: Reference standard; widely used for taper protocols.

Next stepAll benzodiazepine conversions are estimates. Consult a prescribing physician or pharmacist before making any dose changes. A conservative starting dose (50-75% of the calculated equivalent) is standard practice when transitioning drugs.

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