I am sure I will miss some things, but this what I can remember:
Cotton wool
Gamgee
Vetalintex
Vet wrap
Wound dressings/Melonin
Iodine
Purple spray
Hibiscrub
Poultice boot
Flammazine
Fuciderm
Bute
Syringe
Rubber gloves
Thermometer
Duct tape
Salt
Aloe vera spray
Hypocare (not sure if it works but I bought some and have some left)
Sudocrem (swear by this)
Small scissors
Tweezers
Can't think of anything else, but there may be other stuff sculling around in my first aid bag in my box.
Vetwrap
Large cotton wool rolls
Animalintex
Lots of duct tape
Nappies for poultices
Thermometer
Large syringes
Scissors
Hibiscrub
Tub for mixing Hibiscrub or soaking animalintex
rubber gloves
Melolin wound dressings
Salt
Epsom Salts
Bute
Lots of creams and lotions off the shelf or left over from previous injuries
Little first aid book