Evaluation of the antiemetic efficacy of maropitant in dogs medicated with morphine and acepromazine

Maropitant (1 mg kg−1) SC reduced the frequency of morphine-induced emesis by as much as 70% when administered 30 minutes in advance. Simultaneous administration of maropitant and morphine-acepromazine produced no measurable effect on the frequency of retching or vomiting.