Answer
It is mixed with the supplied solvent and injected into a vein.
Sources for this answer
- ADVATE 250 IU, 500 IU, 1000 IU & 1500 IU powder and solvent for solution for injection 2 ml solvent — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.