Source:http://linkedlifedata.com/resource/umls/id/C0000960
NCI: The maleate salt of acepromazine, a phenothiazine derivative with depressant effect on the central nervous system. Acepromazine acts as a dopamine receptor antagonist in the CNS, thereby causing sedation, muscular relaxation and a reduction in spontaneous activity. Its fast-acting neuroleptic effect with low toxicity is of particular value in veterinary medicine.