Table 1

 Chlorpromazine equivalents (to 100 mg) for antipsychotic drugs based on the conversion guidelines of the British National Formulary32 for haloperidol, risperidone, and sulpiride, and based on Woods33 for quetiapine and olanzapine

AntipsychoticsDaily dose (mg)
Chlorpromazine100
Haloperidol2–3
Olanzapine5
Quetiapine75
Risperidone0.5–1
Sulpiride200