Haloperidol
Antipsychotic — typical
Indications
SchizophreniaAcute maniaAcute behavioural disturbanceTourette's
Adult dose
PO: 1.5–20 mg/day in divided doses. IM acute: 2–10 mg, max 20 mg/24h.
Common side effects
EPS (high — acute dystonia, parkinsonism, akathisia)SedationHyperprolactinaemia
Serious side effects
NMSQT prolongationTardive dyskinesiaSudden cardiac death
Contraindications
QT prolongationRecent MIUncompensated heart failureParkinson's diseaseDementia with Lewy bodies
Monitoring
- Baseline ECG before IV; metabolic monitoring; EPS
Notable interactions
- QT prolongers
- CYP3A4/2D6 modulators alter levels
Curated reference based on BNF, Maudsley Prescribing Guidelines and NICE. Verify against current BNF and local guidelines before prescribing.