The powder is white and the solvent is a clear and colourless solution.
The active substance is: Haemophilus influenzae type b polysaccharide (10 micrograms per 0.5 ml dose) conjugated to tetanus protein (18-30 micrograms per 0.5 ml dose).
This vaccine comes in the form of a vial of powder and a solution for injection of solvent (0.5 ml in pre-filled syringe with needles).
Excipients/Inactive Ingredients: The other ingredients are: For the powder: trometamol and sucrose and concentrated hydrochloric acid for pH adjustment.
For the solvent: sodium chloride and water for injections.