CAI
Clinical Asset Index
by VOS Supply Group
Drugs · acquisition-cost intelligence

Fycompa

perampanel· ingredient perampanelOther antiepileptics· PERAMPANEL 10 mg/1; PERAMPANEL 12 mg/1; PERAMPANEL 2 mg/1; PERAMPANEL 4 mg/1
What this is. Acquisition-cost intelligence for pharmacy & clinic buyers — the historical trend, generic-equivalent costs, and Part D posture. NADAC is a pharmacy acquisition cost (the national average pharmacies pay), not a retail or cash price — for consumer cash prices use GoodRx/your plan.
Acquisition benchmark · NADAC per ML
$21.45
NADAC — pharmacy acquisition cost, not a retail/cash price

Acquisition-cost history

Weekly NADAC per ML — the trend nobody else shows. 8 weeks.

2025-12-172026-05-20

Medicare Part D coverage · CY2026

On 322 plan formularies · typical tier 4
Prior auth 39% · Step therapy 21% · Quantity limit 88% of formularies

Sources: CMS NADAC (pharmacy acquisition cost), FDA NDC + RxNorm (identity), RxClass (therapeutic class), CMS Medicare Part D formulary (coverage). Observed reference data for professional buyers — not a retail/cash price, not pricing or medical advice. Verify before purchasing or substituting.