Yangtze Evening News, December 11 (Reporter Yu Dandan) The child's classmates have been infected with the flu one after another, should you take oseltamivir to prevent it in advance?Recently, some parents have rumored that taking oseltamivir can prevent influenza. Is this true?The reporter interviewed Liu Peiyan, the pharmacist in charge of Nanjing First Hospital. Experts say oseltamivir has a preventive effect, but only if there has been close contact with someone who has been diagnosed with the flu. Prophylaxis with oseltamivir is not recommended if there is no clear history of exposure. Also, not all colds and fevers are caused by the flu virus. Oseltamivir can be used for the prevention of influenza A and B, but is not effective for the common cold and bacterial infections.
Oseltamivir is an antiviral drug that inhibits the further increase in the number of viruses, thereby inhibiting the spread of the virus in the body and reducing pathogenicity. When oseltamivir is used for influenza A and B, the sooner the flu symptoms appear, the better. Taking it within 48 hours of symptom onset significantly reduces the incidence of severe influenza disease and death.
When oseltamivir is used for prophylaxis, it is first necessary to determine that you are a close contact of influenza patients, and the prophylactic drug effect is better within 48 hours after close contact. Liu Peiyan said that the recommended dose of oseltamivir prophylactic medication is generally half of the ** dose, and the course of treatment is at least 7 days, that is, the recommended prophylactic dose for close high-risk groups aged 13 and over is 75mg times, once a day, and the course of treatment is at least 7 days;The recommended single dose for close high-risk groups over 1 year old and under 13 years old is the same as the ** dose (calculated according to kilogram body weight), but the number of doses is adjusted from 2 times a day to 1 time a day.
According to experts, the main role of oseltamivir is to stop the spread of the virus, not to prevent the virus from invading. Unregulated use or long-term abuse may lead to drug resistance. In addition, oseltamivir may also have other *** Some people may experience adverse gastrointestinal reactions such as diarrhea and bloating after taking it.
Adolescents should pay attention to personal hygiene, ventilate the environment where they live and study Xi, and more importantly, strengthen physical exercise, appropriately increase outdoor activities, and improve their own immunity. In the process of daily social interaction, you should be conscious not to contact or indirectly contact with influenza patients, and it is recommended to avoid going to places with large amounts and wear masks reasonably. At present, active influenza vaccination is still the safest and most effective means of preventing influenza, which can significantly reduce the risk of influenza and serious complications in vaccinated people.
Proofreading Tao Shangong.