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Doctor insights on: How Long Is Flu Contagious After Tamiflu

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How long can you be contagious for tamiflu (oseltamivir) and swine flu?

How long can you be contagious for tamiflu (oseltamivir) and swine flu?

Contagious: Well tamiflu (oseltamivir) is a medicine to trat influenza, so it is never contagious. Influenzae is contagious for as long as the person is shedding virus. Usually 1-2 weeks. ...Read more

Dr. Samuel Graitcer
218 doctors shared insights

Oseltamivir (Definition)

The brand name is tamiflu (oseltamivir). It is a prodrug, which means it is inactive until metabolized by a person's body into the active form. It blocks neuraminidase, an enzyme in influenza virus; by doing this, it prevents the flu virus from detaching from the host cell and slows the spread of the virus. It comes in a tablet form, as ...Read more


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I got the flu and since monday night i have been taking tamiflu (oseltamivir). Am i still contagious? Am i ok to run errands as long as im cautious around others?

I got the flu and since monday night i have been taking tamiflu (oseltamivir). Am i still contagious? Am i ok to run errands as long as im cautious around others?

Take good precaution: It is hard to say if you are still contagious, maybe not. However it is never a bad idea to take good precautions such as washing hands, stop hand-shaking or hugging, cough in your arm. I don't think you need to quarantine yourself, it sounds like you are feeling pretty good to be running errands ...Read more

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My kids 9&7 & I have had flu since Sunday night and started tamiflu (oseltamivir) Mon night. Are we still contagious on Friday. I don't want my 4monthold sick.

My kids 9&7 & I have had flu since Sunday night and started tamiflu (oseltamivir) Mon night. Are we still contagious on Friday. I don't want my 4monthold sick.

You all still may be: contagious. Tamiflu (oseltamivir) can shorten the course of the illness symptoms, but your respiratory secretions probably still have some infectious particles. I would still try to keep your other children away from the baby at least until all symptoms are totally gone for 24 hours...and for you and them, good hand washing. Ideally if you have an option of someone else doing the care for the baby, also do that. ...Read more

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7 yr old son diag. W/ flu on sunday. Symp. Began sat. On tamiflu (oseltamivir) since. Now thurs. - still contagious? Pedi. Says he can go back to school fri.

7 yr old son diag. W/ flu on sunday. Symp. Began sat. On tamiflu (oseltamivir) since. Now thurs. - still contagious? Pedi. Says he can go back to school fri.

Discuss with doctor: These are symptoms that require a thorough evaluation by your doctor. Only after obtaining this informstion, can he/she adequately diagnose and treat you. ...Read more

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I had the swine flu. Got tamiflu (oseltamivir) which worked and I feel better no more fever. Today is the fifth day since it started on sat am I still contagious?

I had the swine flu. Got tamiflu (oseltamivir) which worked and I feel better no more fever. Today is the fifth day since it started on sat  am I still contagious?

Probably not: The virus is transmitted via water droplets in your coughs/sneezes. If you are not coughing/sneezing etc...And that you took tamiflu (oseltamivir) already, it is not likely that you are contagious now. But, caution is always advised. Cover your coughs/sneezes and wash your hands... Good luck. ...Read more

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7 year old flu symptoms since Monday night. Started tamiflu (oseltamivir) Tuesday night. No fever since Wednesday afternoon. All symptoms gone. Still contagious?

7 year old flu symptoms since Monday night. Started tamiflu (oseltamivir) Tuesday night. No fever since Wednesday afternoon. All symptoms gone. Still contagious?

Influenza: Usually a person is contagious for a day before illness starts and contagiousness lasts for 5-7 days after the illness begins. Studies have shown that if Tamiflu (oseltamivir) is started within 48 hours of illness it decreases shedding of the virus by 1 day. ...Read more

Dr. Heidi Fowler
1,889 doctors shared insights

Flu (Definition)

The flu, otherwise known as influenza, is a viral infection of the nose and throat. Symptoms of influenza include fever, chills, runny nose, muscle aches, fatigue, malaise, headaches, and coughing. Children with the flu often have nausea and vomiting as well. Some strains of the flu are preventable by getting a yearly flu ...Read more


Dr. Qamar Khan
185 doctors shared insights

Tamiflu (Definition)

Tamiflu is a flu/influenza agent which is a kind of anti-viral ...Read more