Which routes of administration are indicated for acepromazine?

• A. IM, Oral, and Oral Transmucosal (OTM)
• B. IV Only
• C. IM and IV
• D. Subcutaneous Only

Answer: (A)

Acepromazine can be given through several routes to fit different patients and situations, with IM, oral, and oral transmucosal (OTM) being the practical options in many routine settings. Intramuscular administration is a standard, reliable way to achieve sedation with a relatively predictable onset, making it a go-to route for premedication. Oral administration offers a convenient, noninvasive option when injections aren’t feasible or desired, though onset is slower and absorption more variable due to first-pass metabolism. Oral transmucosal delivery provides another noninvasive route, useful when swallowing is difficult or when you want to avoid injections, though absorption can be variable.

IV administration exists but is not emphasized as a primary indicated route for routine premedication, owing to the need for careful monitoring and the potential for rapid, unpredictable hemodynamic effects; subcutaneous use is not standard for routine acepromazine sedation. That combination of IM, oral, and OTM reflects the common, practical routes used in practice.