IMPORTANT SAFETY INFORMATION

Fluzone Quadrivalent, Flublok Quadrivalent, and Fluzone High-Dose Quadrivalent should not be given to anyone who has had a severe allergic reaction to any component of the vaccine (including eggs or egg products for Fluzone Quadrivalent and Fluzone High-Dose Quadrivalent) or after previous dose of the vaccine. In addition, Fluzone Quadrivalent and Fluzone High-Dose Quadrivalent should not be given to anyone who has had a severe allergic reaction after previous dose of any influenza vaccine.

Tell your health care provider if you have ever had Guillain-Barré syndrome (severe muscle weakness) after a previous influenza vaccination.

If Fluzone Quadrivalent, Flublok Quadrivalent, and Fluzone High-Dose Quadrivalent are given to people with a compromised immune system, including those receiving therapies that suppress the immune system, the immune response may be lower than expected.

Vaccination with Fluzone Quadrivalent, Flublok Quadrivalent, and Fluzone High-Dose Quadrivalent may not protect all people who receive the vaccine.

For Fluzone Quadrivalent, in children 6 months through 35 months of age, the most common side effects were pain, tenderness, redness, and/or swelling where you got the shot; irritability, abnormal crying, general discomfort, drowsiness, loss of appetite, muscle aches, vomiting, and fever. In children 3 years through 8 years of age, the most common side effects were pain, redness, and/or swelling where you got the shot; muscle aches, general discomfort, and headache. In adults 18 years and older, the most common side effects were pain where you got the shot; muscle aches, headache, and general discomfort.

For Flublok Quadrivalent, in adults 18 through 49 years of age, the most common side effects were tenderness, and/or pain where you got the shot; headache, tiredness, muscle aches, and joint pain. In adults 50 years of age and older the most common side effects were tenderness, and/or pain where you got the shot; headache and tiredness.

For Fluzone High-Dose Quadrivalent, in adults 65 years of age and older, the most common side effects were pain, redness, and/or swelling where you got the shot; muscle aches, headache, and general discomfort.

For Fluzone Quadrivalent, Flublok Quadrivalent, and Fluzone High-Dose Quadrivalent, other side effects may occur.

For more information, talk to your health care professional and refer to the full Prescribing Information for Flublok Quadrivalent,
Fluzone Quadrivalent, or Fluzone High-Dose Quadrivalent. Also, please see complete Patient Information for Fluzone Quadrivalent or
Fluzone High-Dose Quadrivalent.