Per 0.5 mL dose Diphtheria toxoid ≥30 IU, tetanus toxoid ≥40 IU, Bordetella pertussis antigens (toxoid 25 mcg, filamentous haemagglutinin 25 mcg), inactivated poliomyelitis virus type 1 40 D antigen units, type 2 8 D antigen units & type 3 32 D antigen units