Drugs · acquisition-cost intelligence
Tamiflu
oseltamivir phosphate· ingredient oseltamivirNeuraminidase inhibitors· OSELTAMIVIR PHOSPHATE 30 mg/1; OSELTAMIVIR PHOSPHATE 6 mg/mL; OSELTAMIVIR PHOSPHATE 75 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 EA
$14.52
NADAC — pharmacy acquisition cost, not a retail/cash price
Acquisition-cost history
Weekly NADAC per EA — the trend nobody else shows. 4 weeks.
2025-12-172026-03-18
Same-ingredient options by acquisition cost
Other oseltamivir products, cheapest acquisition cost first. Per EA — confirm strength/form equivalence before switching.
| Product | NADAC / EA | vs this |
|---|---|---|
| Oseltamivir Phosphate | $0.15750 | −$14.36 |
| Oseltamivir | $0.85931 | −$13.66 |
Medicare Part D coverage · CY2026
On 1 plan formularies · typical tier 1
Prior auth 0% · Step therapy 0% · Quantity limit 100% 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.