I know some of you with difficult child's with extreme anxiety and a tendency to get physical have emergency prn's. We normally use the clonodine or tenex that *usually* knocks our difficult child out, but it doesn't always work. I am looking at taking difficult child on a trip with me (to see the baby). He is doing really well right now, but I need an ace in the hole for the plane trip, etc. What do you use for emergency prn's when you absolutely have to?