TAMIFLU 75 MG CAPSULE
FDA nonproprietary name: oseltamivir phosphate
For 30 capsules
Pharmacies pay
$435.56 filed
30 × $14.51856 per EA
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-03-18 · as of 2026-10-14 · retrieved 2026-10-17
Medicare
We don’t know yet
No Medicare reference price. Part D: OpenBill did not match this NDC to a usable Medicare Part D spending row. Either Part D has none for it, or the rows that share its name could not safely be tied to it (for example, they mix units, routes or release forms, or the drug is sold over the counter, which Part D does not cover). Part B: This NDC is not in the current quarter’s Medicare Part B NDC-HCPCS crosswalk, so it has no Part B payment limit.
The spread
We don’t know yet
There is no Medicare figure to compare with, so there is no spread.
Cost-plus estimate
$505.89 estimated
$435.56 + $65.33 (15%) + $5.00 fee per fill = $505.89
This is a model, not a price any pharmacy quoted. Shipping is not included. How it is worked out
OpenBill calculation · nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-03-18 (file of 2026-10-14, retrieved 2026-10-17)
Open the interactive card Change the quantity, type what you were charged, and see every record in full.
What it is
TAMIFLU 75 MG CAPSULE is how the CMS NADAC file names this product. The FDA NDC Directory lists it as oseltamivir phosphate, under the trade name “Tamiflu”.
FDA gives its dosage form as capsule and its route as oral.
The labeler, the company named on the label, is Genentech, Inc.
FDA’s Established Pharmacologic Class for it is Neuraminidase Inhibitor.
The NADAC file of 2026-10-14 prices it under one NDC (National Drug Code), 00004-0800-85.
NADAC classes it as a brand-name drug (rate-setting class B), and does not mark it as sold over the counter.
What pharmacies pay
Pharmacies pay $435.56 for 30 capsules (30 × $14.51856 per EA, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-03-18. That is what pharmacies pay their suppliers, not what they charge you.
NADAC’s explanation code for it: 4, carried forward from the previous file.
This NDC’s NADAC was carried forward from an earlier file (NADAC explanation code 2 or 4), not newly surveyed: it took effect on 2026-03-18. The file is new; the price is not.
NADAC also lists, on the row of one brand NDC, what pharmacies pay for the generic equivalent, a different product: $0.79621 per EA filed.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
What NADAC measures · Why 30 capsules · NADAC explanation codes · Carried-forward prices
The NDC
- 00004-0800-85 · Genentech, Inc. · $14.51856 per EA · eff. 2026-03-18 filed carried forward
Other strengths, forms and brands
5 other products in the NADAC file share the FDA nonproprietary name oseltamivir phosphate with TAMIFLU 75 MG CAPSULE.
| Product | Pharmacies pay per unit | Medicare per unit |
|---|---|---|
| OSELTAMIVIR 6 MG/ML SUSPENSION | $0.14964 per ML filed | We don’t know yet |
| OSELTAMIVIR PHOS 30 MG CAPSULE | $0.67955 per EA filed | We don’t know yet |
| OSELTAMIVIR PHOS 45 MG CAPSULE | $0.7872 per EA filed | We don’t know yet |
| OSELTAMIVIR PHOS 75 MG CAPSULE | $0.79621 per EA filed | We don’t know yet |
| TAMIFLU 6 MG/ML SUSPENSION | $2.43293 per ML filed | We don’t know yet |
| TAMIFLU 75 MG CAPSULE this page | $14.51856 per EA filed | We don’t know yet |
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. between 2026-02-18 and 2026-09-30 (4 dates) · as of 2026-10-14 · retrieved 2026-10-17
Compared with its class
Its NADAC price is $14.51856 per EA filed.
Of the 3 other products in FDA’s Neuraminidase Inhibitor class priced per EA, 0 have a higher middle NADAC price and 3 a lower one. The one in the middle is OSELTAMIVIR PHOS 45 MG CAPSULE, at $0.7872 per EA filed (eff. 2026-09-23).
Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-03-18, 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
What Medicare paid
We don’t know yet; the card above says why.
Which Medicare figure OpenBill compares · How Part D is matched · How Part B is matched
What to ask at the counter
None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.
- What is your cash price for 30 capsules? Is it lower than what I would pay through my insurance?
- Is a generic version available, and would it suit me? NADAC lists a generic with the same ingredient, strength and dosage form by FDA: OSELTAMIVIR PHOS 75 MG CAPSULE. Ask your pharmacist or prescriber; do not switch on your own.
- These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.