If oseltamivir is taken to prevent influenza, 75mg/1 time/1 day, with at least 7 days of medication; if it is for the treatment of influenza, adults and adolescents over 13 years of age are 75mg/2 times/1 day, with 5 days of medication, but children over 1 year of age need to be medicated according to their body weight, and the medication needs to be administered under the guidance of a physician, do not self-medicate.
1. Prevention of influenza: If you take oseltamivir to prevent influenza, you need to start taking the medicine within 2 days after close contact with influenza patients, and the general clinical recommendation is to take the medicine once a day, 75mg once a day, and you need to take the medicine for at least 7 consecutive days.
2. Treatment of influenza: If oseltamivir is taken for the treatment of influenza, the patient needs to start taking the medication as prescribed by the doctor on the first or second day after the beginning of influenza symptoms. For adults and adolescents over 13 years old, the recommended dosage of oseltamivir is two times a day, 75mg once, and it needs to be taken for five days. However, for children over 1 year of age, the dose should be given according to body weight.
Typically, for those weighing ≤15kg, 30mg twice a day; for those weighing more than 15kg, but less than 23kg, 45mg twice a day; for those weighing more than 23kg, but less than 40kg, 60mg twice a day; and for those weighing more than 40kg, the dosage is the same as that given to adults and adolescents over the age of 13.
In conclusion, patients must take Oseltamivir under the guidance of a doctor, and should not use the drug on their own to avoid delaying treatment.