Tenivac™ is a preservative-free Td vaccine formulated for tetanus and diphtheria in adolescents and adults 7 years and older. Each single-dose vial contains 0.5 mL with 5 Lf tetanus toxoid and 2 Lf diphtheria toxoid, administered intramuscularly. This convenient pre-filled format eliminates preparation steps and ensures consistent dosing for routine immunization and booster protocols. Requires refrigeration at 2-8°C until administration.