Bacterial lysates (Haemophilus influenzae, Streptococcus pneumoniae, Klebsiella pneumoniae, Klebsiella ozaenae, Staphylococcus aureus, Streptococcus pyogenes, Streptococcus viridans, Neisseria catarrhalis), gelatin, mannitol, magnesium stearate, indigotine (E132).