The antibacterial effect of selected neuroleptics on Vibrio cholerae.

The present investigation has been undertaken to illustrate the anti-bacterial effect of chlorpromazine, clopenthixol and levomepromazine-maleate. It has been shown that clopenthixol has the strongest antibacterial effect. It is known that chlorpromazine also has an antisecretory activity. The fact that clopenthixol exists in cis(Z)- and trans(E)-isomerical compounds, and that these compounds both have an antibacterial effect, but only the cis-compound has an antisecretory and neuroleptic effect, might suggest the development of more specific pharmaceuticals in these new fields.