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Live federal data · NADAC weekly · Part D CY24

Donepezil Pyridostigmine

Donepezil vs Pyridostigmine — $215.6M of combined CY2024 Part D plan spend across 2 molecules. Side-by-side data, every number traced to its CMS or FDA source.

Last updated
NADAC: refreshed weeklyPart D Formulary: quarterlyPart D Spend: annual (CY24)Orange Book: weeklyShortages: daily

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Up to 4 drugsCross-class or same-class

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Federal data onlyNo PBM pricing assumed
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11 dimensions
Cholinesterase Inhibitor
Donepezil
Brand: Aricept
First FDA approval:
Cholinesterase Inhibitor
Pyridostigmine
Brand: Mestinon
First FDA approval:
Lowest NADACAcquisition cost floor across all NDCs
$0.044Per unit
$0.273Per unit
Average NADACAcross all dosage forms and strengths
$0.131Up to $0.729
$1.62Up to $6.93
Generic manufacturersActive ANDA holders — FDA Orange Book
2041 total ANDAs filed
1113 total ANDAs filed
Annualized Part D spendCY2024 — CMS Part D Spending Dashboard
$158.0MFull year
$57.5MFull year
Part D claims (CY24)Total fills, all strengths
12.3M2.9M beneficiaries
424K125K beneficiaries
Avg cost per claimCalculated: total spend ÷ total claims
$13Per claim, all NDCs
$136Per claim, all NDCs
Part D plans surveyed2026 plan year — CMS Formulary file
329Across CMS plan year
329Across CMS plan year
Prior-authorization frictionPlan-NDC pairs requiring PA
0Zero PA friction
0Zero PA friction
Step therapy appliedPlan-NDC pairs requiring step therapy
3Limited friction
0None
FDA shortage statusLive cross-reference vs FDA Drug Shortage Database
NoneClear
NoneClear
Generic availableFDA Orange Book
Yes20 manufacturers
Yes11 manufacturers