GLORIOUS!
Don't think there is any literature on this anon. But Ivermectin, NAC, and Zinc would be my guess.
It's a tube in a rectangle box about 6 inches long. It's delivered to horses by body weight, most have markings 250 lbs at a time on the tube. You'll understand when you see it.
Go to any ranch store to horse medication aisle (Parasites). If they ask you any questions say deworming muh horses.