Droperidol, haloperidol and azabutyron inhibit the reactions of rabbit aortal stria caused by stimulation of D-type serotonine receptors. Droperidol appears most active in this respect. Its antiserotonine properties are characterised by certain selectivity. The capacity of droperidol for protection of D-receptors against irreversible dibenamine blockade suggests its indirect interaction with D-receptors.
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