How should the solvent be added and mixed when reconstituting Cablivi powder for injection to avoid foaming?

For intravenous or subcutaneous administration, reconstitute Cablivi powder using the vial adapter and all solvent in the pre-filled syringe, adding the solvent slowly and mixing gently to avoid foaming, then leave the vial with connected syringe standing on a surface for 5 minutes at room temperature.