Tamiflu

Fever, Influenza, Influenza + 9 more

Treatment

20 Active Studies for Tamiflu

What is Tamiflu

Oseltamivir

The Generic name of this drug

Treatment Summary

Oseltamivir (brand name TamifluⓇ) is a medication used to treat and prevent infections caused by influenza A and B viruses. It works by blocking the activity of the virus's neuraminidase enzyme, preventing the virus from replicating and spreading. It is most effective when taken within 48 hours of the onset of symptoms, but can still be beneficial if taken up to 48 hours after symptom onset. Oseltamivir can reduce fever and illness symptoms, and may reduce the risk of complications such as pneumonia and respiratory failure in those at higher risk, such as children, elderly, pregnant women

Tamiflu

is the brand name

image of different drug pills on a surface

Tamiflu Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Tamiflu

Oseltamivir

1999

141

Effectiveness

How Tamiflu Affects Patients

In rare cases, there have been reports of patients taking oseltamivir for influenza experiencing delirium and abnormal behavior, which has sometimes led to injury or even death. These events were reported primarily among pediatric patients and had a sudden start and end. It is still unclear how much oseltamivir contributes to these events. It's important to remember that influenza can be associated with neurologic and behavioral symptoms, including hallucinations, delirium, and abnormal behavior, that can sometimes be fatal.

How Tamiflu works in the body

Oseltamivir phosphate is a drug that helps fight off the flu virus. It works by blocking the spread of the virus by blocking its neuraminidase enzymes. These enzymes are found on the surface of the virus and are responsible for the virus entering uninfected cells and for new virus particles from being released from infected cells. Oseltamivir prevents this from happening, which stops the spread of the virus and reduces its ability to cause infection. It works against both influenza A and influenza B, including pandemic H1N1.

When to interrupt dosage

The recommended measure of Tamiflu is contingent upon the diagnosed condition, such as Influenza A, Influenza B, Symptomatic for no more than 48 hours. and Influenza virus vaccine. The amount also shifts depending on the technique of administration (e.g. Capsule or Capsule - Oral) identified in the below table.

Condition

Dosage

Administration

Influenza Epidemic

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Symptomatic for no more than 48 hours.

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Fever

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Influenza

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Influenza

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

influenza A virus

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Influenza A, Influenza B

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

less than 1 year of age

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Influenza Type B

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Clinical Supervision

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Only during an influenza pandemic outbreak

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Influenza virus vaccine

, 75.0 mg, 6.0 mg/mL, 45.0 mg, 12.0 mg/mL, 30.0 mg

Oral, , Capsule, Capsule - Oral, Powder, for suspension, Powder, for suspension - Oral, For suspension, For suspension - Oral, Suspension - Oral, Suspension

Warnings

There are 20 known major drug interactions with Tamiflu.

Common Tamiflu Drug Interactions

Drug Name

Risk Level

Description

Abacavir

Minor

Oseltamivir may decrease the excretion rate of Abacavir which could result in a higher serum level.

Acetaminophen

Minor

Oseltamivir may decrease the excretion rate of Acetaminophen which could result in a higher serum level.

Aclidinium

Minor

Oseltamivir may decrease the excretion rate of Aclidinium which could result in a higher serum level.

Acrivastine

Minor

Oseltamivir may decrease the excretion rate of Acrivastine which could result in a higher serum level.

Albutrepenonacog alfa

Minor

Oseltamivir may decrease the excretion rate of Albutrepenonacog alfa which could result in a higher serum level.

Tamiflu Toxicity & Overdose Risk

There have been reports of people overdosing on oseltamivir, but generally no negative side effects were reported. In some cases, the reactions experienced were similar to those seen in people taking the drug at the recommended dosage.

image of a doctor in a lab doing drug, clinical research

Tamiflu Novel Uses: Which Conditions Have a Clinical Trial Featuring Tamiflu?

64 active clinical trials are currently examining the potential of Tamiflu to provide Clinical Supervision, prophylaxis and treatment for Influenza A and B, as well as Fever.

Condition

Clinical Trials

Trial Phases

influenza A virus

2 Actively Recruiting

Phase 1, Phase 2, Not Applicable

Influenza Type B

1 Actively Recruiting

Not Applicable

Influenza

0 Actively Recruiting

Fever

2 Actively Recruiting

Not Applicable, Phase 4

Influenza Epidemic

0 Actively Recruiting

Only during an influenza pandemic outbreak

0 Actively Recruiting

Symptomatic for no more than 48 hours.

0 Actively Recruiting

Influenza

29 Actively Recruiting

Not Applicable, Phase 4, Phase 2, Phase 1, Phase 3

Clinical Supervision

0 Actively Recruiting

Influenza virus vaccine

0 Actively Recruiting

less than 1 year of age

0 Actively Recruiting

Influenza A, Influenza B

0 Actively Recruiting

Tamiflu Reviews: What are patients saying about Tamiflu?

5

Patient Review

3/7/2020

Tamiflu for The Flu

My daughter got the flu on Tuesday and we had her tested and on Tamiflu by Wednesday afternoon. By that evening, she was already looking better and woke up fever-free the next morning. This was a huge relief for us.

5

Patient Review

2/19/2020

Tamiflu for The Flu

I started taking this medication at the first sign of sickness and it really helped. I still felt awful for a couple days, but by day three my fever had broken and I was feeling much better. If you can, try to catch your illness early on for the best chance of recovery.

5

Patient Review

2/19/2020

Tamiflu for The Flu

I was feeling better within just a few days of taking this medication, and I had absolutely no side effects. It worked like a charm!

5

Patient Review

2/16/2020

Tamiflu for The Flu

I began taking Tamiflu about 14 hours after my severe flu symptoms started. I felt awful for the next 12 hours, but then started to feel better. The next day, most of my symptoms were gone--though I could still sense a little bit of sickness. Based on what I've read from other people's reviews, I had a much better experience than many others seem to have had. The only side effects I experienced were some mild dizziness on day 4 and body itchiness on day 3.

5

Patient Review

2/1/2020

Tamiflu for The Flu

I've never had the flu in my life, but this year was really bad. I'm so glad I took Tamiflu because it saved me from a lot of suffering.

5

Patient Review

2/12/2020

Tamiflu for The Flu

I was diagnosed with influenza and began taking Tamiflu. After just two days, I felt like my old self again. This medication is wonderful!

5

Patient Review

10/20/2022

Tamiflu for The Flu

I was reluctant to take Tamiflu due to all of the negative side effects that are listed. However, my doctor highly recommended it and I decided to start a 5 day course. I'm glad that I did! Not only did I not experience any negative side effects, but I felt better after just one pill. If you're considering taking Tamiflu, I would definitely recommend it. Just make sure to take it on a full stomach.

4.3

Patient Review

2/22/2020

Tamiflu for The Flu

Tamaflu quickly and effectively broke my fever, though I'm still dealing with a cough. Ibuprofen wasn't helping me at all, but this prescription did the trick. So far I haven't experienced any negative side effects.

3

Patient Review

11/17/2020

Tamiflu for The Flu

I always get the flu and right after taking the Tamiflu, I throw up.

2.3

Patient Review

2/15/2020

Tamiflu for The Flu

I initially found Tamiflu helpful for my flu symptoms. However, the side effects were debilitating. I felt lightheaded and dizzy, had a headache that lasted for days, and was unable to sleep. As a result, I stopped taking the medication before finishing the course.

1

Patient Review

1/31/2020

Tamiflu for The Flu

After just one hour, I felt incredibly restricted in my breathing. It felt like my throat was closing off and it was difficult to breathe. My mouth also became very dry. Do not take this medication! You will feel much better without it!

1

Patient Review

11/11/2021

Tamiflu for The Flu

I had some really unpleasant side effects from this medication that made it impossible for me to continue taking it. I would not recommend it to anyone.

1

Patient Review

2/15/2020

Tamiflu for The Flu

I had an incredibly negative experience with this medication. It made me nauseous and vomit each time I took it, and also gave me a lot of stomach pain. Avoid at all costs.

1

Patient Review

7/11/2022

Tamiflu for The Flu

I tested positive for the flu and negative for covid so I was prescribed Tamiflu. However, after taking it as directed, my symptoms have only doubled.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about tamiflu

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is Tamiflu worth taking?

"The U.S. Centers for Disease Control and Prevention and the Infectious disease Society of America recommend Tamiflu for patients who have a higher risk of developing complications such as pneumonia that may follow influenza. This includes "at risk" patients such as those who are hospitalized, pregnant women, etc."

Answered by AI

Can I get Tamiflu over-the-counter?

"The prescription drug Tamiflu is used to treat symptoms of the flu such as a stuffy nose, cough, sore throat, fever, chills, body aches, and fatigue. It may also be used to prevent the flu virus, influenza. Tamiflu is not available over-the-counter and requires a prescription from a doctor."

Answered by AI

What exactly does Tamiflu do?

"Tamiflu is an antiviral drug that works by attacking the flu virus to keep it from multiplying in your body and by reducing the symptoms of the flu. Tamiflu can sometimes keep you from getting the flu if you take it before you get sick."

Answered by AI

How long does it take for Tamiflu to work?

"The most effective treatment for influenza is received when the person starts taking Tamiflu within 48 hours after the first symptoms start to appear, according to Govorkova. She said that Tamiflu has been clinically proven to reduce the duration of influenza symptoms by one to two days. Although this may not seem like much, it is still the most effective treatment option available."

Answered by AI

When Should Tamiflu be taken?

"If you have the flu, or think you may have been exposed to the flu, take this medication as soon as possible. It is most effective if taken within 2 days of either event. Oseltamivir should be taken twice a day for 5 days, as directed by a doctor."

Answered by AI

How quickly does Tamiflu begin to work?

"It is most effective to start taking Tamiflu within 48 hours of the first appearance of symptoms, according to Govorkova. She said that while Tamiflu is clinically proven to reduce the duration of influenza symptoms by one to two days, that may not seem like much."

Answered by AI

Clinical Trials for Tamiflu

Image of Institute for Health Research in Aurora, United States.

Behavioral Nudge Texts for Flu Vaccination

Any Age
All Sexes
Aurora, CO

Influenza infection leads to significant morbidity and mortality each year. Influenza vaccines can reduce the risk of flu and the severity of flu illness, In addition, flu vaccinations can reduce flu complications such as pneumonia or worsening of chronic heart or lung disease. Each year, Kaiser Permanente of Colorado offers influenza vaccines to patients at no cost either at primary care clinic appointments or flu walk-in clinics in the fall prior to the upcoming flu season. In addition, as part of clinic appointment reminder text messages, there is a message to get the flu vaccine for patients who have not received the vaccine prior to the clinic visit. Building on these flu reminder text messages for patients who have not received a flu vaccine, this study will test different behavioral nudge text messages to improve influenza vaccination rates.

Waitlist Available
Has No Placebo

Institute for Health Research

Michael Ho, MD, PhD

Have you considered Tamiflu clinical trials?

We made a collection of clinical trials featuring Tamiflu, we think they might fit your search criteria.
Go to Trials
Image of AFC Trussville in Trussville, United States.

Metrix Respiratory Panel Test for COVID-19 and Flu

Any Age
All Sexes
Trussville, AL

The Metrix Respiratory Panel Test will be evaluated for use in Non-Laboratory settings in a home testing environment utilizing the clinical study design described herein. The study will take place in simulated home environments which will be set up within or near active clinical settings (e.g., urgent care facilities). This will be a prospective study conducted at three or more investigational sites located within the United States for the clinical validation of the Metrix Respiratory Panel Test for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory syncytial virus, and Rhinovirus in anterior nares (AN) swab samples. Additional sites may be added to the study in order to meet minimum subject/sample enrollment requirements and geographic prevalence of respiratory virus infections. Comparator testing will be performed to determine the infection status of each sample for comparison to results generated by the candidate test. The primary comparator for the study will be an FDA-cleared assay for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory Syncytial Virus, and Rhinovirus.

Waitlist Available
Has No Placebo

AFC Trussville

Brad W Killingsworth, M.A.

Aptitude Medical Systems

Image of National Institutes of Health Clinical Center in Bethesda, United States.

BPL-1357 for Flu

18 - 55
All Sexes
Bethesda, MD

Background: Influenza (flu) infections are a serious global health threat. Each year, between 3 and 5 million people get the flu, and up to 500,000 die from it. Current vaccines protect against seasonal flus, but broader vaccines are needed to protect against potential flu pandemics. Objective: To test an experimental flu vaccine. Eligibility: Healthy people aged 18 to 55 years. Design: The study will last 5 to 8 months and has 2 phases, A and B. The study vaccine will be given either as a shot in the arm or as a nasal spray. Participants will receive 1 of 3 combinations: (1) study vaccine in the nose and placebo in the arm; (2) placebo in the nose and study vaccine in the arm; or (3) placebo in the nose and placebo in the arm. A placebo is just like the real vaccine but contains no active ingredients. Phase A: Participants will have 5 clinic visits over 56 days. They will receive a shot and a nasal spray at 2 of the visits, 28 days apart. At each visit, they will have a physical exam, with tests of their blood, urine, and nasal secretions. They will check their temperature at home and record any symptoms for 7 days after each vaccine. Phase B: Participants will stay in the hospital for at least 9 days. They will be infected with a flu virus. They will provide blood, urine, and nasal fluid samples. They will have tests of their heart function. They will remain in the hospital until they test negative for the flu 2 days in a row. They will have 2 follow-up visits, 4 and 8 weeks after leaving the hospital. ...

Phase 2
Recruiting

National Institutes of Health Clinical Center (+1 Sites)

Luca T Giurgea, M.D.

Have you considered Tamiflu clinical trials?

We made a collection of clinical trials featuring Tamiflu, we think they might fit your search criteria.
Go to Trials
Image of Altasciences Inc - Kansas City in Overland Park, United States.

VNT-101 for Safety and Tolerability Study

18 - 59
All Sexes
Overland Park, KS

A randomized, double-blind, placebo-controlled Phase 1 study conducted at a single center with approximately 78 healthy adults aged 18-59 years. Part 1 Single Ascending Dose (SAD) will enroll 48 participants into six cohorts (S1-S6) to receive single oral doses of VNT-101 (100-1500 mg) or placebo under fasting or fed (S5 only) conditions. Part 2 Multiple Ascending Dose (MAD) will enroll 30 participants into three cohorts (M1-M3) to receive multiple oral doses of VNT-101 (250-750 mg BID Days 1-5, QD Day 6) or placebo under fasting conditions. Dose escalation in both parts will proceed after Protocol Safety Review Team (PSRT) review. The primary objective for Part 1 is to evaluate the safety and tolerability of single ascending oral (SAD) doses of VNT-101 in healthy adult participants under either fasting or fed conditions. The primary objective for part 2 is to evaluate the safety and tolerability of multiple ascending oral (MAD) doses of VNT-101 in healthy adult participants.

Phase 1
Recruiting

Altasciences Inc - Kansas City

Have you considered Tamiflu clinical trials?

We made a collection of clinical trials featuring Tamiflu, we think they might fit your search criteria.
Go to Trials