This medicine contains as active ingredient haloperidol, a psychoactive medicine that influences the activity of the brain. It is effective in reducing the violent aggressive manifestations of mental illnesses such as schizophrenia, mania, Alzheimer’s dementia, and other disorders in which hallucinations are experienced.

This drug is one of many non-phenothiazine agents used to treat psychosis. These drugs are equally effective when given in therapeutically equivalent doses. The major differences are in the type and severity of side effects. Some people may respond well to one and not at all to another.

This drug acts on a portion of the brain called the hypothalamus. It affects parts of the hypothalamus that control metabolism, body  temperature, alertness, muscle tone, hormone balance, and  vomiting.

Prescribed for

The drug is prescribed for:

•   Anxiety

•   Agitation and psychotic behavior

•   Tourette’s syndrome

•   Huntington’s chorea.

•   Aggression in Alzheimer’s dementia

Before using this medicine

Before you use this medicine check with your  doctor:

•   if you ever had any unusual or allergic reaction to haloperidol.

•    if you are pregnant or intend to become pregnant while using this medicine. Decide with your doctor if the drug benefits justify the risk to the unborn child.

•    if you are breast-feeding an infant. The drug passes into the breast milk. Avoid the drug or discontinue nursing until you finish the medicine.

•   if you have suffering from a depression.

•   if you have Parkinson’s disease.


This medication is used to relieve or prevent the symptoms of your medical problem affecting your brain  function.

Usual dose:The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history,   your doctor may prescribe a different regime. Starting dose for adults 0.5-2 milligrams 2 or 3 times a day. Some patients may need 3-5 milligrams 2 or 3 times a day. The starting dose for children is 0.5 mg a day.

Tablet:swallow with liquid. If you can not swallow whole, crumble tablet and take with liquid or food.

Drops:dilute dose in beverage before  swallowing.

Children:not recommended in children younger than 3 years. Side effects may be more common.

Prolonged use:the patient may develop tardive dyskinesia. Talk to your doctor for follow-up medical examinations or laboratory studies to check blood pressure, liver function.

Cautions and Warnings

•   This drug should be avoided by people with:

•   Low blood pressure

•   Parkinson’s disease

•   Blood disease

•   Liver disease

•   Heart disease

•   Kidney disease

•    If you have glaucoma, epilepsy or a history of seizures, ulcers, or difficulty urinating, this drug should be used with caution and under strict  supervision of your doctor.

•    If this drug is used to control mania in bipolar disorder, a rapid depressive mood swing may occur.

Side Effects

Along with the needed effects, a medicine may cause some unwanted effects. Side effects may include:

High fever

Rapid pulse

Profuse sweating

Muscle rigidity

Confusion and irritability


Jerky or involuntary movements

Slow-frequency tremor

Lack of facial expression

Inflexible movements

Pacing or restlessness


Symptoms of overdose are:

Weak, rapid pulse

Shallow, slow breathing

Tremor or muscle weakness

Very low blood pressure


Deep sleep ending in coma

•    Call a doctor. Apply, if necessary, cardiac massage and mouth-to-mouth breathing.


•    Be cautious about taking this medicine with barbiturates, sleeping pills, narcotics or other sedatives, tricyclic depressants, alcohol, or any other medication that may produce a depressive effect.

•    Combining this medicine with carbamazepine may decrease the effectiveness of this medicine requiring a dosage adjustment.

•    Anticholinergic drugs may reduce the effectiveness of this medicine and increase the risk of side effects.

•    Be sure to tell your doctor about any medications (also over-the-counter drugs) you are currently taking.

Driving or Hazardous Work

Do not drive until you learn how the medicine affects you. Do not work around dangerous machinery. Do not climb ladders or work in high places. Danger increases if you drink alcohol or take medicines affecting alertness and reflexes.


Store at room temperature in tightly closed, light-resistant containers. Keep out of the reach of children since overdose may be especially dangerous in children.

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About Genomic Medicine UK

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