Table 6.

Profile of adverse effects for selected antipsychotics at therapeutic doses (derived from Procyshyn et al. [92])

Drug	Sedationa	Hypotension/dizzinessb	Extrapyramidal side effectsc	Anticholinergic effectsd
Haloperidol	+	+	+++	+
Levomepromazine (methotrimeprazine)	+++	+++	++	+++
Chlorpromazine	+++	+++	++	+++
Olanzapine	+++	+	+	++
Quetiapine	+++	++	+	+++
Risperidone	++	++	++	+
Aripiprazole	++	+	+	+

+ indicates frequency >2%, ++ indicates frequency >10%, +++ indicates frequency >30%, ↓ indicates decreased, ↑ indicates increased

^aDue to antihistaminic effect of certain antipsychotics

^bHypotension/dizziness: due to adrenergic side effects

^cSee text for details

^dPeripheral: blurred vision, dry mouth, constipation, ↓ bronchial secretion, ↓ sweating, difficulty urination, urinary retention, tachycardia; central: impairment of concentration and memory, ↑ confusion (delirium)