beta-adrenoceptor ( propranolol ) , dopamine receptor ( domperidone and chlorpromazine ) , a cholinoceptor ( atropine ) , an opiate receptor ( naloxone ) , and a histamine-receptor ( diphenhydramine ) antagonists , at the doses studied , did not prevent xylazine-induced vomiting .
C0008286
chlorpromazine
C0042963
vomiting