| The effect of psychotropics on QTc | |
| No effect: | Brexipiprazole, Cariprazine and Lurasidone |
| Low effect (Overdose or <10 ms increase in QTc) | Aripiprazole, amisulpride, clozapine, flupentixol, fluphenazine, perphenazine, prochlorperazine, olanzapine, risperidone, sulpiride, loxapine, paliperidone |
| Moderate effect (>10 ms QT prolongation at clinical doses) | Amisulpride, chlorpromazine, levomepromazine, iloperidone, melperone, quetiapine, ziprasidone |
| High effect (>20 ms QTc prolongation at average clinical doses) | Pimozide, Sertindole Any single drug or combination of drugs that are used in doses above recommended upper limits |