The drugs interact on a wide range of neuroreceptors and often have antidopaminergic? effects. the range of interacts produce many different adverse effects of extrapyramidal reactions, including acute dystonias, akathisia, rigidity and tremour and tardive dyskinesia as well as tachycardia, hypotension, impotence, lethargy, seizures and on and on.
Drugs used as antipsychotics include the three groups of phenothiazines, thioxanthenes, diphenylbutylpiperidines, substituted benzamides, ioxapine (tricyclic dibenzoxazepine), clozapine (dibenzodiazepine) and oxypertine.