Oseltamivir
Also known as: Tamiflu · Ebilfumin · Oseltamivir Phosphate
General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).
In short
In the European Union, oseltamivir is indicated for the treatment of influenza in adults and children, including full-term neonates, who present with typical symptoms when the virus is circulating in the community, with efficacy demonstrated when initiated within two days of symptom onset. It is also indicated in the European Union for post-exposure prevention of influenza in individuals aged one year or older, for seasonal prevention in exceptional situations, and for post-exposure prevention in infants under one year of age during a pandemic outbreak. In the United States, oseltamivir phosphate is indicated for the treatment of acute, uncomplicated influenza A and B in patients aged two weeks and older who have been symptomatic for no more than 48 hours, and for the prophylaxis of influenza A and B in patients aged one year and older. Oseltamivir is not a substitute for annual influenza vaccination, and its use is determined on the basis of official guidelines and considerations of drug susceptibility patterns.
From: Source: European Medicines Agency (EMA), Tamiflu — EPAR, 15/04/2025. © European Medicines Agency. · Data provided by the U.S. Food and Drug Administration.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
- RxNorm
- 260101 oseltamivir
- EMA
- EMEA/H/C/000402, EMEA/H/C/003717
Official indications
Quoted unchanged from official product information, in English. Listed alphabetically by product, not ranked.
FDA (USA) Oseltamivir Phosphate
1 INDICATIONS AND USAGE Oseltamivir phosphate capsules are 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. (1.3) 1.1 Treatment of Influenza Oseltamivir phosphate capsules are 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. 1.2 Prophylaxis of Influenza Oseltamivir phosphate capsules are indicated for the prophylaxis of influenza A and B in patients 1 year and older. 1.3 Limitations of Use Oseltamivir phosphate capsules are not a substitute for early influenza vaccination on an annual basis as recommended by the Centers for Disease Control and Prevention Advisory Committee on Immunization Practices. Influenza viruses change over time. Emergence of resistance substitutions could decrease drug effectiveness. Other factors (for example, changes in viral virulence) might also diminish clinical benefit of antiviral drugs. Prescribers should consider available information on influenza drug susceptibility patterns and treatment effects when deciding whether to use oseltamivir phosphate capsules [see Microbiology (12.4) ] . Oseltamivir phosphate capsules are not recommended for patients with end-stage renal disease not undergoing dialysis [see Dosage and Administration (2.4) and Use in Specific Populations (8.6) ] .
Data provided by the U.S. Food and Drug Administration.
Document date: 20260115 · Official document →
EMA (EU) Tamiflu
Treatment of influenza Tamiflu is indicated in adults and children including full term neonates who present with symptoms typical of influenza, when influenza virus is circulating in the community. Efficacy has been demonstrated when treatment is initiated within two days of first onset of symptoms.Prevention of influenza Post-exposure prevention in individuals one year of age or older following contact with a clinically diagnosed influenza case when influenza virus is circulating in the community. The appropriate use of Tamiflu for prevention of influenza should be determined on a case-by-case basis by the circumstances and the population requiring protection. In exceptional situations (e.g. in case of a mismatch between the circulating and vaccine virus strains, and a pandemic situation) seasonal prevention could be considered in individuals one year of age or older. Tamiflu is indicated for post-exposure prevention of influenza in infants less than 1 year of age during a pandemic-influenza outbreak. Tamiflu is not a substitute for influenza vaccination. The use of antivirals for the treatment and prevention of influenza should be determined on the basis of official recommendations. Decisions regarding the use of oseltamivir for treatment and prophylaxis should take into consideration what is known about the characteristics of the circulating influenza viruses, available information on influenza drug susceptibility patterns for each season and the impact of the disease in different geographical areas and patient populations.
Source: European Medicines Agency (EMA), Tamiflu — EPAR, 15/04/2025. © European Medicines Agency.
Document date: 15/04/2025 · Official document →
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What people report
Not enough data yet. Anonymous counts appear here only for groups of at least 20 people who agreed to share them.
External resources
Questions
What is Oseltamivir approved for in the European Union?
Treatment of influenza Tamiflu is indicated in adults and children including full term neonates who present with symptoms typical of influenza, when influenza virus is circulating in the community. Efficacy has been demonstrated when treatment is initiated within two days of first onset of symptoms.Prevention of influenza Post-exposure prevention in individuals one year of age or older following contact with a clinically diagnosed influenza case when influenza virus is circulating in the community. The appropriate use of Tamiflu for prevention of influenza should be determined on a case-by-case basis by the circumstances and the population requiring protection. In exceptional situations (e.g. in case of a mismatch between the circulating and vaccine virus strains, and a pandemic situation) seasonal prevention could be considered in individuals one year of age or older. Tamiflu is indicated for post-exposure prevention of influenza in infants less than 1 year of age during a pandemic-influenza outbreak. Tamiflu is not a substitute for influenza vaccination. The use of antivirals for the treatment and prevention of influenza should be determined on the basis of official recommendations. Decisions regarding the use of oseltamivir for treatment and prophylaxis should take into consideration what is known about the characteristics of the circulating influenza viruses, available information on influenza drug susceptibility patterns for each season and the impact of the disease in different geographical areas and patient populations. (Source: European Medicines Agency (EMA), Tamiflu — EPAR, 15/04/2025. © European Medicines Agency.)
Sources and attribution
- Source: European Medicines Agency (EMA) — EPAR. © European Medicines Agency.
- Data provided by the U.S. Food and Drug Administration.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.
- Source: European Medicines Agency (EMA), Tamiflu — EPAR, 15/04/2025. © European Medicines Agency.
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
About this page. This page brings together public information from official sources, each cited where it is used. It is not medical advice, it is not a diagnosis, and it does not tell you which treatment to take.
Treatments. Indications are quoted unchanged from official product information (European Medicines Agency, U.S. Food and Drug Administration). They describe what a medicine is approved for, not whether it is right for you. Approved uses can differ between countries. Always read the package leaflet and follow your doctor's or pharmacist's advice.
What people report. Figures marked "reported by Anpheros users" are anonymous counts from at least 20 people who agreed to share them. They show what people report, not what works, and they are not clinical evidence.
Links between terms. "May be associated with" means the link appears in a cited source. It does not mean you have that condition.
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