Prescription medicine
Oseltamivir Brand names: Tamiflu
Oseltamivir (Tamiflu) is a prescription medicine with an FDA approval on record since 1999. FDA's NDC Directory lists it from 36 generic labelers, and pharmacies paid $0.150 per mL (Oseltamivir 6 mg/mL suspension) in the October 7, 2026 NADAC survey.
- Generic listed
Check it at the source: the oseltamivir FDA label on DailyMed (effective December 15, 2025, Genentech, Inc.); the NDA 21087 record on Drugs@FDA; every oseltamivir label on DailyMed.
Highlights of the record
FDA label of December 15, 2025; NDC Directory, Drugs@FDA and Orange Book, October 8, 2026; NADAC October 7, 2026
Used for
From the label: indications and usageTAMIFLU is an influenza neuraminidase inhibitor (NAI) indicated for: Treatment of acute, uncomplicated influenza A and B in patients 2 weeks of age and older who have been symptomatic for no more than 48 hours.
Forms and strengths
- 30 mg
- 45 mg
- 75 mg
- 6 mg/ml
Capsule; powder for suspension; for suspension; suspension.
On the market
- Earliest approval on file
- October 27, 1999 Tamiflu, Roche; Drugs@FDA’s file, where older or withdrawn approvals can be missing
- Generic approvals
- 37 first August 3, 2016; 31 with a marketed status in Drugs@FDA
- Labelers listed (NDC)
- 37 of which 36 under generic applications, 1 under brand applications, repackagers included
Supply and safety
- Pharmacy cost (NADAC)
- $0.150 per mL Oseltamivir 6 mg/mL suspension
- Shortage (FDA)
- No current entry
- Recalls by its makers (FDA)
- 3 since 2021 0 Class I among all firms' recalls; latest February 13, 2024
- FAERS reports
- 24,281 through July 30, 2026
What is oseltamivir used for?
From the label: indications and usageTAMIFLU is an influenza neuraminidase inhibitor (NAI) indicated for: Treatment of acute, uncomplicated influenza A and B in patients 2 weeks of age and older who have been symptomatic for no more than 48 hours. ( 1.1 ) Prophylaxis of influenza A and B in patients 1 year and older. ( 1.2 ) Limitations of Use: Not a substitute for annual influenza vaccination. ( 1.3 ) Consider available information on influenza drug susceptibility patterns and treatment effects when deciding whether to use. ( 1.3 ) Not recommended for patients with end-stage renal disease not undergoing dialysis. […]
Conditions named in the indications of oseltamivir's FDA labels, with every medicine labeled for each:
From other oseltamivir labelsInfluenza: Treatment of Influenza TAMIFLU is indicated for the treatment of acute, uncomplicated illness due to influenza A and B infection in patients 2 weeks of age and older who have been symptomatic for no more than 48 hours.
FDA pharmacologic class: Neuraminidase Inhibitor.
Source: FDA drug label (Tamiflu), NDA021087 (Roche), as published by Genentech, Inc., effective December 15, 2025 (SPL set ee3c9555-60f2-4f82-a760-11983c86e97b), via openFDA; the full label on DailyMed
Is there a generic for oseltamivir (Tamiflu)?
The FDA approved the first generic oseltamivir on August 3, 2016. 37 generic applications are approved; 31 of them carry a current (not discontinued) marketing status in Drugs@FDA; that status is not evidence that the generic is on sale.
FDA's NDC Directory lists oseltamivir from 36 labelers under a generic (ANDA) application and from 1 brand labeler. A listing means the company has registered the product for sale; it does not show that every pharmacy stocks it.
- 1999 earliest approval on file
- 2016 first generic approved
- red ticks recalls
Source: Drugs@FDA, FDA NDC Directory and the Orange Book (openFDA bulk files, October 8, 2026)
What do pharmacies pay for oseltamivir (Tamiflu)?
In CMS's NADAC survey of October 7, 2026, pharmacies paid $0.150 per mL (Oseltamivir 6 mg/mL suspension), down 14% from $0.174 on October 8, 2025. Prices per unit in the table differ many-fold by strength, form and brand, so compare like with like. The chart's scale runs from the lowest to the highest price shown, not from zero. NADAC is what retail pharmacies paid their wholesalers, per unit, in CMS's monthly survey; what a patient pays depends on insurance and the pharmacy.
- Oseltamivir 6 mg/mL suspension (generic)
- Tamiflu 6 mg/mL suspension (brand)
| Strength and form | Brand or generic | Pharmacy cost | 30 tablets, or one pen or vial | 12-month change |
|---|---|---|---|---|
| Oseltamivir 6 mg/mL suspension | Generic | $0.150 per mL | n/a | -14% |
| Oseltamivir phos 30 mg capsule | Generic | $0.680 per capsule | $20.39 | +8% |
| Oseltamivir phos 45 mg capsule | Generic | $0.787 per capsule | $23.62 | -30% |
| Oseltamivir phos 75 mg capsule | Generic | $0.796 per capsule | $23.89 | -13% |
| Tamiflu 6 mg/mL suspension | Brand | $2.43 per mL | n/a | +0.1% |
| Tamiflu 75 mg capsule | Brand | $14.52 per capsule many times the lowest per-tablet cost; NADAC records the price, not why | $435.56 | -0.5% |
Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price
Has oseltamivir been recalled?
The FDA's Enforcement Report lists 3 recalls naming oseltamivir since 2021: 0 Class I (the most serious), 2 Class II, 1 Class III; 0 still ongoing. A recall names products and lots, not every product of the medicine.
| Started | Class | Company | Reason |
|---|---|---|---|
| February 13, 2024 | Class II | Amneal Pharmaceuticals of New York, LLC | Failed Impurities/Degradation Specifications: Out-of-specification test results. |
| March 15, 2021 | Class II | Cardinal Health Inc. | CGMP Deviations: Intermittent exposure to temperature excursion during storage. |
| January 21, 2021 | Class III | Lupin Pharmaceuticals Inc. | Failed Impurities/Degradation Specifications; Out-of-specification test results observed for Impurity C at 9 month long-term stability time point. |
Source: FDA Enforcement Report (drug recalls) via openFDA, through October 8, 2026
What does the oseltamivir label say about other medicines?
The oseltamivir label names 7 other medicines in its interaction, contraindication or warning sections. The labels of 2 other medicines name oseltamivir. The sentences are the labels' own; a label lists what its studies and reports found, not every interaction.
| Medicine named | Section | What the label says |
|---|---|---|
| Acetaminophen | drug interactions | Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical … |
| Amantadine | drug interactions | … acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical Pharmacology (12.3) ]. |
| Amoxicillin | drug interactions | Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical … |
| Aspirin | drug interactions | Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical … |
| Cimetidine | drug interactions | Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical … |
| Rimantadine | drug interactions | Interaction with TAMIFLU No dose adjustments are needed for either oseltamivir or the concomitant drug when coadministering oseltamivir with amoxicillin, acetaminophen, aspirin, cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical … |
| Warfarin | drug interactions | … cimetidine, antacids (magnesium and aluminum hydroxides and calcium carbonates), rimantadine, amantadine, or warfarin [see Clinical Pharmacology (12.3) ]. |
Other labels that name oseltamivir
Source: FDA drug label (Tamiflu), NDA021087 (Roche), as published by Genentech, Inc., effective December 15, 2025 (SPL set ee3c9555-60f2-4f82-a760-11983c86e97b), via openFDA; the full label on DailyMed
What do FAERS reports show for oseltamivir?
The FDA Adverse Event Reporting System holds 24,281 reports that list oseltamivir among the medicines taken, through July 30, 2026, each a report of something that happened, not proof the medicine caused it; 2,714 are coded as a death and 6,550 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is.
Reports received each year
The most reported reactions
Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026
What else is labeled for the same conditions as oseltamivir?
3 other medicines are given the same way (oral) and in the same FDA class as oseltamivir or labeled mainly for the same use (influenza), the same class first. Influenza lists all 5 medicines labeled for it, by any route. They are listed as records, not as substitutes: whether one can replace another is a prescriber's decision.
| Medicine | Shared indication | Generic labelers (oral) | Pharmacy cost | Shortage |
|---|---|---|---|---|
| Amantadine | Influenza | 34 labelers | $0.143 per capsule 100 mg capsule | No current entry |
| Baloxavir marboxil | Influenza | none listed | $161.94 per tablet 40 mg tablet | No current entry |
| Rimantadine | Influenza | 1 labeler | n/a | No current entry |
Every medicine labeled for the same conditions as oseltamivir
Source: FDA drug labels (indications), NDC Directory, NADAC of October 7, 2026, FDA shortages (October 8, 2026)
How does oseltamivir compare with medicines for the same use?
1 side-by-side page set oseltamivir beside a medicine whose label shares a use: approvals, generics, pharmacy cost, warnings and supply.
What next?
- Alternatives to oseltamivir
- 3 medicines for the same use
- Other neuraminidase inhibitors
- the pharmacologic class, with prices and generics
- Oseltamivir side effects
- the label's list beside FAERS reports
- Check an interaction
- what two or more labels say about each other