The general duration of taking oseltamivir phosphate to be effective is between 3 and 7 days, depending on the severity of the illness. It cannot be generalized. Oseltamivir phosphate has antiviral effects, which can inhibit the release of viruses from infected cells, thereby reducing the spread of influenza A and influenza B viruses. It is commonly used to treat influenza A and influenza B in adults and children over 1 year of age.
If the condition is relatively mild, with only symptoms of mild fatigue, the duration of medication may be relatively short, and the effect may be seen after taking the medication for 3 days. If the condition is more severe, with symptoms such as fever, sore throat, cough, muscle soreness, the duration of medication may be relatively longer, and the effect may be seen after taking the medication for 7 days, or even longer. When taking this medication, it is necessary to strictly follow the doctor's instructions and not to use it blindly to avoid any adverse effects. People who are allergic to this medication should not take it to prevent allergic reactions. Some people may experience adverse reactions such as nausea, vomiting, and insomnia after taking the medication. If the adverse reactions are mild, no special treatment is required. If the adverse reactions are severe, it is recommended to seek medical treatment at a formal hospital.
