Levodopa Equivalent Daily Dose (Jost 2023)

The levodopa equivalent daily dose of a Parkinson's disease regimen, by the 2023 factors.

Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.

Example

Levodopa, immediate-release, total a day
600 mg
Pramipexole, as salt, total a day
3 mg
COMT inhibitor
Opicapone

Result: Levodopa equivalent dose: 1,200 mg a day, from 3 items (Jost 2023 factors).

The tool opens with these values already filled in. Replace them with your own.

What you enter

  • Levodopa, immediate-release, total a day
  • Levodopa, dual-release (Madopar DR), total a day
  • Levodopa, controlled-release, total a day
  • Levodopa, extended-release (Rytary), total a day
  • Levodopa, inhaled (capsule dose), total a day
  • Intrajejunal levodopa/carbidopa infusion (morning, maintenance and extra doses), total a day
  • Intrajejunal levodopa/carbidopa/entacapone infusion: morning dose, total a day
  • Intrajejunal levodopa/carbidopa/entacapone infusion: maintenance and extra doses, total a day
The other 25 fields
  • Subcutaneous foslevodopa/foscarbidopa, total a day
  • Selegiline, oral, total a day
  • Selegiline, sublingual, total a day
  • Rasagiline, total a day
  • Pramipexole, as salt, total a day
  • Pramipexole, as base, total a day
  • Ropinirole, total a day
  • Rotigotine, total a day
  • Piribedil, total a day
  • Apomorphine, subcutaneous, total a day
  • Apomorphine, sublingual, total a day
  • Lisuride, total a day
  • Bromocriptine, total a day
  • Pergolide, total a day
  • Cabergoline, total a day
  • Dihydroergocryptine, total a day
  • Amantadine, immediate-release, total a day
  • Amantadine, extended-release (Gocovri), total a day
  • Amantadine, extended-release (Osmolex ER), total a day
  • COMT inhibitor
  • Levodopa equivalent covered by entacapone or tolcapone
  • Istradefylline
  • Safinamide 50 or 100 mg a day
  • Zonisamide 25 or 50 mg a day
  • Clinically effective anticholinergic single doses a day
How this is calculated

Citation

Jost ST, Kaldenbach MA, Antonini A, et al. Levodopa dose equivalency in Parkinson's disease: updated systematic review and proposals. Mov Disord 2023;38(7):1236-1252, Table 1. Read the source ↗

A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.

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Built by Clay Good. Source on GitHub.