An infusion is the standard way it’s given. An IV is attached to a vein (in my case in my wrist), and the antibodies flow into your bloodstream for about 10-15 minutes. Then a saline solution flows through the plastic tube to ensure that all the antibodies get into the bloodstream. From start to finish, it about 1 1/2 to 2 hours as they wait a while to ensure your vitals are normal.
That was my experience as well. They held me for an hour or so post-imfusion and it took a couple of hours to rehydrate me before they they gave it to me. Wasn’t doing too well when I came in.