Dose Range/Adult Daily Dose
- Range: 40160 mg/d
Schizophrenia: Start: 20 mg po bid, up to 80 mg bid
Mania: Start: 40 mg po bid, up to 80 mg bid; IM: 1020 mg prn (up to 40 mg/d)
Use/Common Side Effects (CSE)
- Use: Schizophrenia, bipolar (manic and mixed), IM: acute agitation
CSE: Dizziness, drowsiness, restlessness, nausea, constipation, diarrhea, PROLONGED QT INTERVAL, NMS; NEW: Serious: Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) [rash, fever, swollen lymph nodes]. Seek urgent medical help.
Geriatric & Dose Considerations
- ↓Dose in elderly.
Contraindicated: QT prolongation, Caution w CV/hepatic disease and CV drugs; >65 y; Alzheimers dementia. Risk of falls.
Warning: ↑ mortality in elderly with dementia-related psychosis