A freeze dried pellet, each dose containing live attenuated Parainfluenza type 3 (PI3) virus, strain ts RLB 103, minimum 105.2 CCID50 and live attenuated Infectious Bovine Rhinotracheitis (IBR) virus, strain ts RLB 106, minimum 105.5 CCID50 supplied together with a vial of sterile diluent for reconstitution. Also contains traces of neomycin sulphate and gentamycin sulphate (not exceeding 25 µg).