About haloperidol
First-generation antipsychotic
Used for
- Schizophrenia and other psychotic disorders
- Acute agitation or severe behavioral disturbance
- Tourette syndrome and severe tics
Usual adult dose
Usually 0.5–5 mg two or three times daily for psychosis; dose depends on condition and response.
Usual dose in children
Specialist-directed: doses vary by age and condition; not routinely used for children.
Common side effects
- Sleepiness, dizziness, or restlessness
- Muscle stiffness, tremor, or movement problems
- Dry mouth, constipation, or blurred vision
- Raised prolactin, which may affect periods or sexual function
Important warnings
- Can cause serious abnormal heart rhythms, especially with risk factors or interacting medicines.
- Seek urgent care for fever, severe stiffness, confusion, or reduced consciousness.
- Long-term use may cause persistent involuntary movements.
- May increase stroke and death risk in older adults with dementia-related psychosis.
Pregnancy
Use only when clearly needed; late-pregnancy exposure may cause newborn movement or withdrawal symptoms.
Breastfeeding
Passes into breast milk and may affect the infant; use requires careful clinical review.
Interactions
- Medicines that prolong the QT interval can increase dangerous rhythm risk.
- Alcohol and sedatives can increase drowsiness.
- Levodopa and dopamine agonists may work less effectively.
- Some medicines alter haloperidol levels, including carbamazepine and fluoxetine.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.