Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.
CLOSE NAIL
A horseshoe nail that does not actually quick the hoof, but comes close enough to sensitive structures to create irritating pressure. It may take a few days for a close nail to cause the horse apparent discomfort. a.k.a: Hot nail.