Medicines that can also protect you
If you haven't been able to receive a shot and there's an outbreak in your area, you can improve your odds against getting the flu with three drugs approved by the FDA to protect from the flu.
Each of the drugs is also approved to reduce the length and severity of the flu if you've already contracted it. Amantadine (Symmetrel) and rimantadine (Flumadine), which have long been approved to increase resistance to the flu, have recently been joined by oseltamivir (Tamiflu). All three appear to improve one's resistance to the virus by interfering with the virus's ability to infect and replicate inside the body.