 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  in the community. Talk to your doctor for more details.This medication works by stopping the flu virus from growing. It is not a substitute for the flu vaccine. (See also Notes section. How to use Tamiflu oral Read the Patient Information Leaflet if available from your pharmacist before you start taking this medicine. If you have any questions, consult your doctor or pharmacist. Take this medication by mouth with or without food. You may take it with food or milk to minimize stomach upset. Take this medication as soon as flu symptoms appear or as soon as possible after you have been exposed to the flu. Oseltamivir works best if you start taking it within 2 days of either of these events. If you have the flu, take oseltamivir as directed by your doctor, usually twice a day for 5 days. To prevent the flu, take oseltamivir as directed by your doctor, usually once a day for at least 10 days. Follow your doctor's instructions for how long to take this medicine. The dosage is based on your medical condition, kidney function, and response to treatment. In children the dosage is also based on weight. If you cannot swallow the capsules, ask your doctor or pharmacist about the </s>