So I'm stranded with horse - 10 items for a medical kit!?

I'm stranded with horses (snowed in, castaway on an island perhaps) and I can only carry 10 items in my trusty medical kit. I found scissors, vetwrap, dressings/padding and a few hypodermics in my underwear - what else should I carry with me to cover all bases until help arrives? I have already compiled my own list but I want to see what everyone else has and their reasoning for packing it!