Acepromazine is used to sedate animals for minor procedures (e.g., nail trims), alleviate itching, and prevent vomiting due to motion sickness. It is also used prior to anesthesia, acepromazine is a tranquilizer.
…allergies and atopy (inhalant allergies). Diphenhydramine is an antihistamine, which controls itching. May also be used to control vomiting, for motion sickness, as a mild sedative, and to control muscle tremors due to certain toxins or medications.