The flu is serious.

The flu hits hard and fast, and can leave you with debilitating symptoms that last for more than a week. You can miss out on work, hobbies, and time with family and friends. And it's not just you. The CDC estimates that each year, up to 49 million people will be affected by the flu.

If left untreated, the flu virus can lead to serious complications including pneumonia, dehydration, hospitalization and, in some cases, even death. The sooner you talk to your doctor about XOFLUZA, a prescription flu treatment, the better chance you have of fighting the flu.


The CDC does not endorse private products, services, or enterprises.

*On average, patients felt better in 2.3 days versus 3.3 days with placebo.

Fever, aches, and chills are common flu symptoms.

You don't have to have all of these symptoms to have the flu. If you're experiencing any symptoms, like the ones listed below, don’t wait for things to get worse—see your doctor as soon as possible.

Is It a cold or the flu?

It can be tough to tell the difference between a cold and the flu. Use this chart to help check your symptoms. If you even think it’s the flu, talk to your doctor within the first 48 hours of flu symptoms and ask if prescription XOFLUZA is right for you.

Signs and Symptoms Flu Cold
Symptom onset Abrupt Gradual
Fever Usual Rare
Aches Usual Slight
Chills Fairly common Uncommon
Fatigue, weakness Usual Sometimes
Sneezing Sometimes Common
Stuffy nose Sometimes Common
Sore throat Sometimes Common
Chest discomfort, cough Common Mild to moderate
Headache Common Rare

Know when the flu is in your area.

Get notified when flu activity spikes near you.

Feel better in just over two days.*

Just one dose of XOFLUZA attacks the flu at its source.