sub cu. I get a shot in each arm 30 minutes before radiation. I take a Clariton each day so I don't get a rash at the injection site. The 2nd day I received Ethyol, I had severe vomitting. Of course, I haven't been sick since 1987 (morning sickness), so I'm a real wimp. What is severe to me, may be nothing to someone else. They put me on Compazine, which worked some. Then they added Ativan, and I thought things were okay. My son is coming home for college break today, and I don't want him to see me sick. I'm hoping I don't have to choose between being comatose and vomitting.