Methotrimeprazine (Levomepromazine) is an orally available neuroleptic agent, which is commonly used to relieve nausea and vomiting in palliative care settings. Levomepromazine has antagonist actions at multiple neurotransmitter receptor sites, including dopaminergic, cholinergic, serotonin and histamine receptors[1].
[1]. Cox L, et al. Levomepromazine for nausea and vomiting in palliative care. Cochrane Database Syst Rev. 2015 Nov 2;(11):CD009420. [2]. Sivaraman P, et al. Levomepromazine for schizophrenia. Cochrane Database Syst Rev. 2010 Oct 6;(10):CD007779.