You should certainly have an experienced professional supervise you the very first time you give an injection. If your veterinarian can't make the trip, see if a vet tech can help you out.
[header] How to give a horse an injection [title] Ask an experienced horse person to help out. [step] If you're reading this article, you likely don't have a lot of experience with giving injections. It's a good idea to have someone to help you-either an experienced horse person or your veterinarian.