Oseltamivir is used to treat certain forms of the influenza (flu) virus. It is also prescribed to prevent flu infections in adults and children who have spent time with someone who has the flu or has been in an area where a flu outbreak has occurred.
The flu (or influenza) is a viral infection of the respiratory system (namely your nose, throat, and lungs). Influenza is highly contagious and is commonly passed from person to person most frequently in the months between October and May. According to the CDC, the flu is primarily spread through tiny droplets that are produced when someone talks, sneezes, or coughs. Flu symptoms tend to come on suddenly and are usually more severe than those of a common cold.
Common symptoms of the flu include:
- Body aches
- Sore throat
- Chills or sweating
- Runny or stuffy nose
- Vomiting and diarrhea (more common in children than adults)
According to the CDC, nearly 8% of the population will be infected by the influenza virus every year, with children and adults over the age of 65 getting sick from the virus most frequently.