Acepromazine is a potent neuroleptic agent with a low order of toxicity. It is one of the most commonly used tranquilizers in veterinary medicine; most often used to sedate animals for minor procedures (e.g., nail trims), alleviate itching, and prevent vomiting due to motion sickness. It may also be used prior to anesthesia and surgery. It is not a pain reliever. 10 mg dosage. Priced per Pill.