PLEASE HELP!! ASAP
So my horse had a torn suspensory with previous owners that never fully healed properly. He has to have 4-6 months stall rest(started in march) I hand walk him for 20 min once a day, with a few 15 min in- hand sessions(literally walking in a bridle over small ground poles) maybe 3 times a week, and I can also hand graze him for 20 min a day as well.
We are nearing the end of the stall rest period and getting more into the more active role of very light turnout and tack walking. He has been on perfect prep training day, and Shen calmer. Those two calming agents combined are only enough to keep him happy without exploding.
With that being said, I was wondering if there was a way to possibly drug him enough to keep him calm out in a small vet paddock(small grass pasture away from everything). Maybe with acepromazine injectable? How much is enough? How much would it cost? It needs to be enough that he is just focused on eating grass and gently walking around. Last time we tried him turned out he blew up when a dog barked.