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Is oseltamivir effective in treating influenza? Why is oseltamivir so expensive

Oseltamivir is the most expensive cold medicine. What is the effect of oseltamivir on influenza? Since the winter, influenza has been raging in some parts of China, especially in the northern region. The Department of respiration and outpatient and Department of respiration patients are overcrowded. In the shaking, a drug that treats influenza is oseltiktok, which is the most expensive cold medicine.

Reporter: what is oseltamivir?

Wang Ying: oseltamivir is an antiviral drug, which can inhibit the replication and further spread of the virus in vivo and reduce the pathogenicity. It can be used for the treatment and prevention of influenza A and B.

Reporter: when will oseltamivir be used?

Wang Ying: when oseltamivir is used for treatment, the earlier the symptoms appear, the better. Flu symptoms include headache, fever, muscle pain, fatigue and fatigue, cough, nasal congestion, sore throat, etc. It needs to be used within 48 hours of symptoms, which can shorten the duration of symptoms. For prevention, it is also used as early as possible after contact with other patients, the better the prevention effect. Similarly, it needs to be used within 48 hours of contact with patients. If it has been more than 48 hours, it is generally of little effect and is unlikely to bring benefits. If the condition is serious, hospitalized children, or there are high-risk factors for complications, it can still be considered after more than 48 hours.

Reporter: can oseltamivir be used for children?

Wang Ying: oseltamivir is safe for children over 1 year old. In 2012, FDA granted special approval to infants over 2 weeks old. Children usually choose granules (15mg / bag) for convenience. Domestic instructions: for the treatment of influenza A and B in children aged 1 and over, and for the prevention of influenza A and B in children aged 13 and over.

Reporter: how to take oseltamivir?

Wang Ying: when taking oseltamivir, we should first distinguish whether the purpose of the drug is to treat or prevent the infection of influenza virus, and at the same time, we should also consider the age factors, renal function and whether there is a special disease state. Treatment medication, twice a day, 5 days. Preventive medication, once a day, for 7-10 days. 75 mg once for adults, children's weight according to age, specific dose according to the doctor's advice, and need to complete the course of treatment, even if the symptoms get better in the middle.

Reporter: what are the adverse reactions of oseltamivir?

Wang Ying: the overall safety is good. The most common adverse reactions are gastrointestinal reactions, and the incidence of nausea and vomiting is about 15%. The incidence of vomiting in children is the highest, which usually occurs once in a while or is easy to occur in the first few doses of the drug. Generally, the vomiting will be relieved 1-2 days later.

Finally, director Wang Ying once again reminded the netizens that oseltamivir is not a magic drug and is not effective for common cold. Please use it under the guidance of a doctor and pharmacist.