
Flulaval Trivalent is an influenza vaccine with the active ingredient being a trivalent, split-virion, inactivated influenza virus. It is an injectable suspension for intramuscular use, containing 45 micrograms of hemagglutinin per 0.5-mL dose, with specific virus strains included. The formulation does not contain preservatives like thimerosal and may include trace amounts of inactive ingredients such as formaldehyde and sodium deoxycholate. Flulaval Trivalent is designed to help protect against influenza by preparing the immune system to fight off the infection.