Acepromazine (Ace) is a rapid-acting tranquilizer used most commonly in dogs, cats, and horses for sedative purposes. It acts rapidly, exerting a prompt and pronounced calming effect. It can cause hypotension. Acepromazine significantly lowers the heart rate of ducks.
Note: This drug may potentiate the toxicity of organophosphates and the activity of procaine hydrochloride. Therefore, do not use acepromazine maleate injection to control tremors associated with organic phosphate poisoning. Do not use in conjunction with organophosphorus vermifuges or ectoparasiticides. Do not use with procaine hydrochloride.