$7.5M in CY2024 Part D spend159K claims · 26K beneficiaries · 329 plans surveyed
Questions a plan sponsor actually asks.
What is Phenytoin used for?
Phenytoin prevents seizures by stabilizing electrical activity in the brain.
Is there a generic for Phenytoin?
Yes. 15 ANDAs filed at FDA, 11 generic manufacturers currently shipping.
How much does my plan pay for Phenytoin?
Across 329 Part D plans, Phenytoin averages $0.314/unit (NADAC). Lowest available: $0.084/unit. Highest in distribution: $2.09/unit.
Is Phenytoin on the FDA shortage list?
No. Phenytoin is not currently on the FDA Drug Shortage Database.
8 additional drug-specific questions are indexed in the page's FAQPage schema for search engines and LLM crawlers, beyond what renders visually above. View page source for the complete JSON-LD.
Same class. Different math.
Sources · every number above traces back.
Drug identity, dosage forms, brand names: openFDA NDC Directory · First approval, ANDA history: FDA Orange Book (10 approvals on file) · NADAC unit costs: CMS NADAC weekly file (20 NDCs benchmarked) · Formulary tier and PA placement: CMS Part D Formulary file (329 plans) · Annualized spend, claims, beneficiaries: CMS Part D Spending Dashboard (CY2024) · Shortage status: FDA Drug Shortage Database · 340B exposure: HRSA OPAIS. Methodology and reproducibility notes on /methodology.