1. NAME OF THE MEDICINAL PRODUCT
Haloperidol Oral Solution USP 5mg/5ml Taj Pharma.

2. QUALITATIVE AND QUANTITATIVE COMPOSITION
Each 5 ml contains

Haloperidol USP  5mg
Excipients       q.s.

For the full list of excipients, see section 6.1.

3. PHARMACEUTICAL FORM
Oral solution.
A clear, viscous liquid, colourless to brownish yellow.

4. CLINICAL PARTICULARS

4.1 Therapeutic indications
Adult patients aged 18 years and above

  • Treatment of schizophrenia and schizoaffective disorder.
  • Acute treatment of delirium when non-pharmacological treatments have failed.
  • Treatment of moderate to severe manic episodes associated with bipolar I disorder.
  • Treatment of acute psychomotor agitation associated with psychotic disorder or manic episodes of bipolar I disorder.
  • Treatment of persistent aggression and psychotic symptoms in patients with moderate to severe Alzheimer’s dementia and vascular dementia when non-pharmacological treatments have failed and when there is a risk of harm to self or others.
  • Treatment of tic disorders, including Tourette’s syndrome, in patients with severe impairment after educational, psychological and other pharmacological treatments have failed.
  • Treatment of mild to moderate chorea in Huntington’s disease, when other medicinal products are ineffective or not tolerated.

Paediatric patients
Treatment of:

  • Schizophrenia in adolescents aged 13 to 17 years when other pharmacological treatments have failed or are not tolerated.
  • Persistent, severe aggression in children and adolescents aged 6 to 17 years with autism or pervasive developmental disorders, when other treatments have failed or are not tolerated.
  • Tic disorders, including Tourette’s syndrome, in children and adolescents aged 10 to 17 years with severe impairment after educational, psychological and other pharmacological treatments have failed.

 4.2  Posology and method of administration
Posology

Adults
A low initial dose is recommended, which subsequently may be adjusted according to the patient’s response. Patients must always be maintained on the minimal effective dose (see section 5.2).

Oral solution:

The dose recommendations for Haloperidol Oral Solution BP 5 mg/5 ml are presented in Table 1.

Table 1: Haloperidol dose recommendations for adults aged 18 years and above

Treatment of schizophrenia and schizoaffective disorder

• 2 to 10 mg/day orally, as a single dose or in 2 divided doses. Patients with first-episode schizophrenia generally respond to 2 to 4 mg/day, whereas patients with multiple-episode schizophrenia may need doses up to 10 mg/day.

• Adjustments to the dose may be made every 1 to 7 days.

•Doses above 10 mg/day have not demonstrated superior efficacy to lower doses in the majority of patients and may cause an increased incidence of extrapyramidal symptoms. The individual benefit-risk should be assessed when considering doses above 10 mg/day.

•The maximum dose is 20 mg/day because safety concerns outweigh the clinical benefits of treatment at higher doses.

Acute treatment of delirium when non-pharmacological treatments have failed

• 1 to 10 mg/day orally, as a single dose or in 2 to 3 divided doses.

• Treatment should be started at the lowest possible dose, and the dose should be adjusted in increments at 2- to 4- hour intervals if agitation continues, up to a maximum of 10 mg/day.

Treatment of moderate to severe manic episodes associated with bipolar I disorder

• 2 to 10 mg/day orally, as a single dose or in 2 divided doses.

• Adjustments to the dose may be made every 1 to 3 days.

• Doses above 10 mg/day have not demonstrated superior efficacy to lower doses in the majority of patients and may cause an increased incidence of extrapyramidal symptoms. The individual benefit-risk should be assessed when considering doses above 10 mg/day.

• The maximum dose is 15 mg/day because safety concerns outweigh the clinical benefits of treatment at higher doses.

• The continued use of Haloperidol should be evaluated early in treatment (see section 4.4).

Treatment of acute psychomotor agitation associated with psychotic disorder or manic episodes of bipolar I disorder

• 5 to 10 mg orally, repeated after 12 hours if necessary to a maximum of 20 mg/day.

• The continued use of Haloperidol should be evaluated early in treatment (see section 4.4).

• When switching from haloperidol intramuscular injection, Haloperidol orally should be initiated at a 1:1 dose conversion rate followed by dose adjustment according to clinical response.

Treatment of persistent aggression and psychotic symptoms in patients with moderate to severe Alzheimer’s dementia and vascular dementia when non-pharmacological treatments have failed and when there is a risk of harm to self or others

• 0.5 to 5 mg/day orally, as a single dose or in 2 divided doses.

• Adjustments to the dose may be made every 1 to 3 days.

• The need for continued treatment must be reassessed after no more than 6 weeks.

Treatment of tic disorders, including Tourette’s syndrome, in patients with severe impairment after educational, psychological and other pharmacological treatments have failed

• 0.5 to 5 mg/day orally, as a single dose or in 2 divided doses.

• Adjustments to the dose may be made every 1 to 7 days.

• The need for continued treatment must be reassessed every 6 to 12 months.

Treatment of mild to moderate chorea in Huntington’s disease, when other medicinal products are ineffective or not tolerated

• 2 to 10 mg/day orally, as a single dose or in 2 divided doses.

• Adjustments to the dose may be made every 1 to 3 days.

5mg/5ml oral solution:

The quantity (ml) required to achieve a given single dose using Haloperidol Oral Solution BP 5 mg/5 ml is presented in Table 2.

Table 2: Conversion table for Haloperidol Oral Solution BP 5 mg/5 ml

mg haloperidolml Haloperidol Oral Solution BP 5 mg/5 ml
0.5mg0.5 ml
1 mg1 ml
2 mg2 ml
5 mg5 ml
10 mg10 ml
15 mg15 ml
20 mg20 ml

Treatment withdrawal
Gradual withdrawal of haloperidol is advisable (see section 4.4).

Missed dose
If patients miss a dose, it is recommended that they take the next dose as usual, and do not take a double dose.

Special populations

Elderly
The following initial haloperidol doses are recommended in elderly patients:

  • Treatment of persistent aggression and psychotic symptoms in patients with moderate to severe Alzheimer’s dementia and vascular dementia when non-pharmacological treatments have failed and when there is a risk of harm to self or others – 0.5 mg/day.
  • All other indications – half the lowest adult dose.

The haloperidol dose may be adjusted according to the patient’s response. Careful and gradual dose up-titration in elderly patients is recommended.

The maximum dose in elderly patients is 5 mg/day.

Doses above 5 mg/day should only be considered in patients who have tolerated higher doses and after reassessment of the patient’s individual benefit-risk profile.

Renal impairment

The influence of renal impairment on the pharmacokinetics of haloperidol has not been evaluated. No dose adjustment is recommended, but caution is advised when treating patients with renal impairment. However, patients with severe renal impairment may require a lower initial dose, with subsequent adjustments at smaller increments and at longer intervals than in patients without renal impairment (see section 5.2).

Hepatic impairment

The influence of hepatic impairment on the pharmacokinetics of haloperidol has not been evaluated. Since haloperidol is extensively metabolised in the liver, it is recommended to halve the initial dose, and adjust the dose with smaller increments and at longer intervals than in patients without hepatic impairment (see sections 4.4 and 5.2).

Paediatric population

The dose recommendations for Haloperidol Oral Solution BP 5 mg/5 ml are presented in Table 4.

Table 4: Haloperidol dose recommendations for paediatric populations

Treatment of schizophrenia in adolescents aged 13 to 17 years when other pharmacological treatments have failed or are not tolerated

• The recommended dose is 0.5 to 3 mg/day, administered orally in divided doses (2 to 3 times a day).

• It is recommended to assess the individual benefit-risk when considering doses above 3 mg/day.

• The maximum recommended dose is 5 mg/day.

• The treatment duration must be individually evaluated.

Treatment of persistent, severe aggression in children and adolescents aged 6 to 17 years with autism or pervasive developmental disorders, when other treatments have failed or are not tolerated

• The recommended doses are 0.5 to 3 mg/day in children aged 6 to 11 years and 0.5 to 5 mg/day in adolescents aged 12 to 17 years, administered orally in divided doses (2 to 3 times a day).

• The need for continued treatment must be reassessed after 6 weeks.

Treatment of tic disorders, including Tourette’s syndrome, in children and adolescents aged 10 to 17 years with severe impairment after educational, psychological and other pharmacological treatments have failed

• The recommended doses are 0.5 to 3 mg/day in children and adolescents aged 10 to 17 years, administered orally in divided doses (2 to 3 times a day).

• The need for continued treatment must be reassessed every 6 to 12 months.

The safety and efficacy of Haloperidol Oral Solution BP 5 mg/5 ml in children below the ages defined in the indications have not been established. Data are not available for children aged less than 3 years.

Method of administration

Haloperidol Oral Solution BP 5 mg/5 ml is for oral use.

4.3 Contraindications
• Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

  • Comatose state.
  • Central nervous system (CNS) depression.
  • Parkinson’s disease.
  • Dementia with Lewy bodies.
  • Progressive supranuclear palsy.
  • Known QTc interval prolongation or congenital long QT syndrome.
  • Recent acute myocardial infarction.
  • Uncompensated heart failure.
  • History of ventricular arrhythmia or torsades de pointes.
  • Uncorrected hypokalaemia.
  • Concomitant treatment with medicinal products that prolong the QT interval (see section 4.5).

4.4 Special Warnings and precautions for use
Increased mortality in elderly people with dementia
Rare cases of sudden death have been reported in psychiatric patients receiving antipsychotics, including haloperidol (see section 4.8).

Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Over the course of a typical 10 week controlled study, the rate of death in patients treated with antipsychotics was about 4.5%, compared to a rate of about 2.6% in the placebo group. Although the causes of death were varied, most of the deaths appeared to be either cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) in nature. Observational studies suggest that treatment of elderly patients with haloperidol is also associated with increased mortality. This association may be stronger for haloperidol than for atypical antipsychotic medicinal products, is most pronounced in the first 30 days after the start of treatment, and persists for at least 6 months. The extent to which this association is attributable to the medicinal product, as opposed to being confounded by patient characteristics, has not yet been elucidated.

Cardiovascular effects

QTc prolongation and/or ventricular arrhythmias, in addition to sudden death, have been reported with haloperidol (see sections 4.3 and 4.8). The risk of these events appears to increase with high doses, high plasma concentrations, in predisposed patients or with parenteral use, particularly intravenous administration.

Caution is advised in patients with bradycardia, cardiac disease, family history of QTc prolongation or history of heavy alcohol exposure. Caution is also required in patients with potentially high plasma concentrations (see section 4.4, Poor metabolisers of CYP2D6).

A baseline ECG is recommended before treatment. During therapy, the need for ECG monitoring for QTc interval prolongation and for ventricular arrhythmias must be assessed in all patients. Whilst on therapy, it is recommended to reduce the dose if QTc is prolonged, but haloperidol must be discontinued if the QTc exceeds 500 ms.

Electrolyte disturbances such as hypokalaemia and hypomagnesaemia increase the risk for ventricular arrhythmias and must be corrected before treatment with haloperidol is started. Therefore, baseline and periodic electrolyte monitoring is recommended.

Tachycardia and hypotension (including orthostatic hypotension) have also been reported (see section 4.8). Caution is recommended when haloperidol is administered to patients manifesting hypotension or orthostatic hypotension.

Cerebrovascular events
In randomised, placebo-controlled clinical studies in the dementia population, there was an approximately 3-fold increased risk of cerebrovascular adverse events with some atypical antipsychotics. Observational studies comparing the stroke rate in elderly patients exposed to any antipsychotic to the stroke rate in those not exposed to such medicinal products found an increased stroke rate among exposed patients. This increase may be higher with all butyrophenones, including haloperidol. The mechanism for this increased risk is not known. An increased risk cannot be excluded for other patient populations. Haloperidol must be used with caution in patients with risk factors for stroke.

Neuroleptic malignant syndrome
Haloperidol has been associated with neuroleptic malignant syndrome: a rare idiosyncratic response characterized by hyperthermia, generalised muscle rigidity, autonomic instability, altered consciousness and increased serum creatine phosphokinase levels. Hyperthermia is often an early sign of this syndrome. Antipsychotic treatment must be withdrawn immediately and appropriate supportive therapy and careful monitoring instituted.

Tardive dyskinesia
Tardive dyskinesia may appear in some patients on long-term therapy or after discontinuation of the medicinal product.

The syndrome is mainly characterized by rhythmic involuntary movements of the tongue, face, mouth or jaw. The manifestations may be permanent in some patients. The syndrome may be masked when treatment is reinstituted, when the dose is increased or when a switch is made to a different antipsychotic. If signs and symptoms of tardive dyskinesia appear, the discontinuation of all antipsychotics, including haloperidol, must be considered.

Extrapyramidal symptoms
Extrapyramidal symptoms may occur (e.g. tremor, rigidity, hypersalivation, bradykinesia, akathisia, acute dystonia). The use of haloperidol has been associated with the development of akathisia, characterised by a subjectively unpleasant or distressing restlessness and need to move, often accompanied by an inability to sit or stand still. This is most likely to occur within the first few weeks of treatment. In patients who develop these symptoms, increasing the dose may be detrimental.

Acute dystonia may occur during the first few days of treatment with haloperidol, but later onset as well as onset after dose increases has been reported. Dystonic symptoms can include, but are not limited to, torticollis, facial grimacing, trismus, tongue protrusion, and abnormal eye movements, including oculogyric crisis. Males and younger age groups are at higher risk of experiencing such reactions. Acute dystonia may necessitate stopping the medicinal product.

Antiparkinson medicinal products of the anticholinergic type may be prescribed as required to manage extrapyramidal symptoms, but it is recommended that they are not prescribed routinely as a preventive measure. If concomitant treatment with an antiparkinson medicinal product is required, it may have to be continued after stopping haloperidol if its excretion is faster than that of haloperidol in order to avoid the development or aggravation of extrapyramidal symptoms. The possible increase in intraocular pressure must be considered when anticholinergic medicinal products, including antiparkinson medicinal products, are administered concomitantly with haloperidol.

Seizures/Convulsions
It has been reported that seizures can be triggered by haloperidol. Caution is advised in patients suffering from epilepsy and in conditions predisposing to seizures (e.g., alcohol withdrawal and brain damage).

Hepatobiliary concerns
As Haloperidol is metabolised by the liver, dose adjustment and caution is advised in patients with hepatic impairment (see sections 4.2 and 5.2). Isolated cases of liver function abnormalities or hepatitis, most often cholestatic, have been reported (see section 4.8).

Endocrine system concerns
Thyroxin may facilitate haloperidol toxicity. Antipsychotic therapy in patients with hyperthyroidism must be used only with caution and must always be accompanied by therapy to achieve a euthyroid state.

Hormonal effects of antipsychotics include hyperprolactinaemia, which may cause galactorrhoea, gynaecomastia and oligomenorrhoea or amenorrhoea (see section 4.8). Tissue culture studies suggest that cell growth in human breast tumours may be stimulated by prolactin. Although no clear association with the administration of antipsychotics and human breast tumours has been demonstrated in clinical and epidemiological studies, caution is recommended in patients with relevant medical history. Haloperidol must be used with caution in patients with pre-existing hyperprolactinaemia and in patients with possible prolactin-dependent tumours (see section 5.3).

Hypoglycaemia and syndrome of inappropriate antidiuretic hormone secretion have been reported with haloperidol (see section 4.8).

Venous thromboembolism
Cases of venous thromboembolism (VTE) have been reported with antipsychotics. Since patients treated with antipsychotics often present with acquired risk factors for VTE, all possible risk factors for VTE should be identified before and during treatment with Haloperidol and preventive measures undertaken.

Treatment response and withdrawal
In schizophrenia, the response to antipsychotic treatment may be delayed.

If antipsychotics are withdrawn, recurrence of symptoms related to the underlying condition may not become apparent for several weeks or months.

There have been very rare reports of acute withdrawal symptoms (including nausea, vomiting and insomnia) after abrupt withdrawal of high doses of antipsychotics. Gradual withdrawal is advisable as a precautionary measure.

Patients with depression
It is recommended that haloperidol is not used alone in patients in whom depression is predominant. It may be combined with antidepressants to treat those conditions in which depression and psychosis coexist (see section 4.5).

Switch from mania to depression
There is a risk in the treatment of manic episodes of bipolar disorder for patients to switch from mania to depression.

Monitoring of patients for the switch to a depressive episode with the accompanying risks such as suicidal behaviour is important in order to intervene when such switches occur.

Poor metabolisers of CYP2D6
Haloperidol should be used with caution in patients who are known poor metabolisers of cytochrome P450 (CYP) 2D6 and who are coadministered a CYP3A4 inhibitor.

Paediatric population
Available safety data in the paediatric population indicate a risk of developing extrapyramidal symptoms, including tardive dyskinesia, and sedation. Limited long-term safety data are available.

4.5 Interaction with other medicinal products and other forms of interaction
Interaction studies have only been performed in adults.

Cardiovascular effects
Haloperidol is contraindicated in combination with medicinal products known to prolong the QTc interval (see section 4.3).

Examples include:

  • Class IA antiarrhythmics (e.g. disopyramide, quinidine).
  • Class III antiarrhythmics (e.g. amiodarone, dofetilide, dronedarone, ibutilide, sotalol).
  • Certain antidepressants (e.g. citalopram, escitalopram).
  • Certain antibiotics (e.g. azithromycin, clarithromycin, erythromycin, levofloxacin, moxifloxacin, telithromycin).
  • Other antipsychotics (e.g. phenothiazine derivatives, sertindole, pimozide, ziprasidone)
  • Certain antifungals (e.g. pentamidine).
  • Certain antimalarials (e.g. halofantrine).
  • Certain gastrointestinal medicinal products (e.g. dolasetron).
  • Certain medicinal products used in cancer (e.g. toremifene, vandetanib).
  • Certain other medicinal products (e.g. bepridil, methadone).

This list is not exhaustive.

Caution is advised when haloperidol is used in combination with medicinal products known to cause electrolyte imbalance (see section 4.4).

Medicinal products that may increase haloperidol plasma concentrations
Haloperidol is metabolised by several routes (see section 5.2). The major pathways are glucuronidation and ketone reduction. The cytochrome P450 enzyme system is also involved, particularly CYP3A4 and, to a lesser extent, CYP2D6. Inhibition of these routes of metabolism by another medicinal product or a decrease in CYP2D6 enzyme activity may result in increased haloperidol concentrations. The effect of CYP3A4 inhibition and of decreased CYP2D6 enzyme activity may be additive (see section 5.2). Based on limited and sometimes conflicting information, the potential increase in haloperidol plasma concentrations when a CYP3A4 and/or CYP2D6 inhibitor is coadministered may range between 20 to 40%, although in some cases, increases of up to 100% have been reported. Examples of medicinal products that may increase haloperidol plasma concentrations (based on clinical experience or drug interaction mechanism) include:

  • CYP3A4 inhibitors – alprazolam, fluvoxamine, indinavir, itraconazole, ketoconazole, nefazodone, posaconazole, saquinavir, verapamil, voriconazole.
  • CYP2D6 inhibitors – bupropion, chlorpromazine, duloxetine, paroxetine, promethazine, sertraline, venlafaxine.
  • Combined CYP3A4 and CYP2D6 inhibitors: fluoxetine, ritonavir.
  • Uncertain mechanism – buspirone.

This list is not exhaustive.

Increased haloperidol plasma concentrations may result in an increased risk of adverse events, including QTc prolongation (see section 4.4). Increases in QTc have been observed when haloperidol was given with a combination of the metabolic inhibitors ketoconazole (400 mg/day) and paroxetine (20 mg/day).

It is recommended that patients who take haloperidol concomitantly with such medicinal products be monitored for signs or symptoms of increased or prolonged pharmacologic effects of haloperidol, and the haloperidol dose be decreased as deemed necessary.

Medicinal products that may decrease haloperidol plasma concentrations
Coadministration of haloperidol with potent enzyme inducers of CYP3A4 may gradually decrease the plasma concentrations of haloperidol to such an extent that efficacy may be reduced. Examples include:

  • Carbamazepine, phenobarbital, phenytoin, rifampicin, St John’s Wort (Hypericum perforatum).

This list is not exhaustive.

Enzyme induction may be observed after a few days of treatment. Maximal enzyme induction is generally seen in about 2 weeks and may then be sustained for the same period of time after the cessation of therapy with the medicinal product.

During combination treatment with inducers of CYP3A4, it is recommended that patients be monitored and the haloperidol dose increased as deemed necessary. After withdrawal of the CYP3A4 inducer, the concentration of haloperidol may gradually increase and therefore it may be necessary to reduce the haloperidol dose.

Sodium valproate is known to inhibit glucuronidation, but does not affect haloperidol plasma concentrations.

Effect of haloperidol on other medicinal products
Haloperidol can increase the CNS depression produced by alcohol or CNS-depressant medicinal products, including hypnotics, sedatives or strong analgesics. An enhanced CNS effect, when combined with methyldopa, has also been reported.

Haloperidol may antagonise the action of adrenaline and other sympathomimetic medicinal products (e.g. stimulants like amphetamines) and reverse the blood pressure-lowering effects of adrenergic-blocking medicinal products such as guanethidine.

Haloperidol may antagonise the effect of levodopa and other dopamine agonists.

Haloperidol is an inhibitor of CYP2D6. Haloperidol inhibits the metabolism of tricyclic antidepressants (e.g. imipramine, desipramine), thereby increasing plasma concentrations of these medicinal products.

Other forms of interaction
In rare cases the following symptoms were reported during the concomitant use of lithium and haloperidol: encephalopathy, extrapyramidal symptoms, tardive dyskinesia, neuroleptic malignant syndrome, acute brain syndrome and coma. Most of these symptoms were reversible. It remains unclear whether this represents a distinct clinical entity.

Nonetheless, it is advised that in patients who are treated concomitantly with lithium and haloperidol, therapy must be stopped immediately if such symptoms occur.

Antagonism of the effect of the anticoagulant phenindione has been reported.

4.6 Fertility, Pregnancy and lactation
Pregnancy
A moderate amount of data on pregnant women (more than 400 pregnancy outcomes) indicate no malformative or foeto/neonatal toxicity of haloperidol. However, there have been isolated case reports of birth defects following foetal exposure to haloperidol, mostly in combination with other medicinal products. Animal studies have shown reproductive toxicity (see section 5.3). As a precautionary measure, it is preferable to avoid the use of haloperidol during pregnancy.

Newborn infants exposed to antipsychotics (including haloperidol) during the third trimester of pregnancy are at risk of adverse reactions including extrapyramidal and/or withdrawal symptoms that may vary in severity and duration following delivery. There have been reports of agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, or feeding disorder. Consequently, it is recommended that newborn infants be monitored carefully.

Breastfeeding
Haloperidol is excreted in human milk. Small amounts of haloperidol have been detected in plasma and urine of breastfed newborns of mothers treated with haloperidol. There is insufficient information on the effects of haloperidol in breastfed infants. A decision must be made whether to discontinue breastfeeding or to discontinue haloperidoltherapy taking into account the benefit of breastfeeding for the child and the benefit of therapy for the woman.

Fertility
Haloperidol elevates prolactin level. Hyperprolactinaemia may suppress hypothalamic GnRH, resulting in reduced pituitary gonadotropin secretion. This may inhibit reproductive function by impairing gonadal steroidogenesis in both female and male patients (see section 4.4).

4.7 Effects on ability to drive and use machines
Haloperidol has a moderate influence on the ability to drive and use machines. Some degree of sedation or impairment of alertness may occur, particularly with higher doses and at the start of treatment and may be potentiated by alcohol. It is recommended that patients be advised not to drive or operate machines during treatment, until their susceptibility is known.

4.8 Undesirable Effects
The safety of Haloperidol was evaluated in 284 haloperidol-treated subjects who participated in 3 placebo-controlled clinical studies and in 1295 haloperidol-treated patients who participated in sixteen double blind active comparator-controlled clinical studies.

Based on pooled safety data from these clinical studies, the most commonly reported adverse reactions were: Extrapyramidal disorder (34%), Insomnia (19%), Agitation (15%), Hyperkinesia (13%), Headache (12%), Psychotic disorder (9%), Depression (8%), Weight increased (8%), Tremor (8%), Hypertonia (7%), Orthostatic hypotension (7%), dystonia (6%) and Somnolence (5).

In addition, the safety of haloperidol decanoate was evaluated in 410 patients who participated in 3 comparator studies (1 comparing haloperidol decanoate versus fluphenazine and 2 comparing the decanoate formula to oral haloperidol), 9 open label studies and 1 dose response study.

Table 5 lists adverse reactions as follows:

  • Reported in clinical studies with haloperidol.
  • Reported in clinical studies with haloperidol decanoate and relate to the active moiety.
  • From postmarketing experience with haloperidol and haloperidol decanoate.

Adverse reaction frequencies are based on (or estimated from) clinical trials or epidemiology studies with haloperidol, and classified using the following convention:

Very common:

Common:

Uncommon:

Rare:

Very rare:

Not known:

≥ 1/10

≥1/100 to <1/10

≥1/1,000 to <1/100

≥1/10,000 to <1/1,000

<1/10,000

cannot be estimated from the available data.

The adverse reactions are presented by System Organ Class and in order of decreasing seriousness within each frequency category.

Table 5: Adverse reaction

System Organ ClassAdverse Drug Reaction
Frequency
Very CommonCommonUncommonRareNot Known
Blood and lymphatic System disordersLeukopeniaPancytopenia

Agranulocytosis

Thrombocytopenia

Neutropenia

Immune System disordersHypersensitivityAnaphylactic reaction
Endocrine disordersHyperprolactinaemiaInappropriate antidiuretic hormone secretion
Metabolism and Nutritional disordersHypoglycaemia
Psychiatric disordersAgitation InsomniaPsychotic disorder

Depression

Confusional state

Loss of libido

Libido decreased

Restlessness

Nervous System disordersExtrapyramidal disorder

Hyperkinesia

Headache

Tardive dyskinesia

Akathisia

Bradykinesia

Dyskinesia

Dystonia

Hypokinesia

Hypertonia

Dizziness

Somnolence

Tremor

Convulsion

Parkinsonism

Sedation

Muscle contractions involuntary

Neuroleptic malignant syndrome

Motor dysfunction

Nystagmus

Akinesia

Cogwheel rigidity

Masked facies

Eye disordersOculogyric crisis

Visual disturbance

Vision blurred
Cardiac disordersTachycardiaVentricular fibrillation

Torsade de pointes

Ventricular tachycardia

Extrasystoles

Vascular DisordersHypotension

Orthostatic hypotension

Respiratory, thoracic and mediastinal disordersDyspnoeaBronchospasmLaryngeal oedema

Laryngospasm

Gastrointestinal disordersVomiting

Nausea

Constipation

Dry mouth

Salivary hypersectretion

Hepatobiliary disordersLiver function test abnormalHepatitis

Jaundice

Acute hepatic failure

Cholestasis

Skin and subcutaneous tissue disordersRashPhotosensitivity reaction

Urticaria

Pruritis

Hyperhidrosis

Angioedema

Dermatitis exfoliative

Leukocytoclastic vasculitis

Musculoskeletal and Connective Tissue disordersTorticollis

Muscle rigidity

Muscle Spasms

Musculoskeletal stiffness

Trismus

Muscle twitching

Rhabdomyolysis
Renal and Urinary disordersUrinary retention
Pregnancy, Puerperium and Perinatal conditionsDrug withdrawal syndrome neonatal

(see section 4.6)

Reproductive System and Breast disordersErectile dysfunctionAmenorrhoea

Galactorrhoea

Dysmenorrhoea

Breast pain

Breast discomfort

Menorrhagia

Menstrual disorder

Sexual Dysfunction

Priapism

Gynaecomastiaa

General disorders and administration site conditionsHyperthermia

Oedema

Gait disturbance

Sudden death

Face oedema

Hypothermia

InvestigationsWeight increased

Weight decreased

ElectrocardiProgram QT prolonged

Electrocardiogram QT prolonged, ventricular arrhythmias (ventricular fibrillation, ventricular tachycardia), torsade de pointes and sudden death have been reported with haloperidol.

Class effects of antipsychotics

Cardiac arrest has been reported with antipsychotics.

Cases of venous thromboembolism, including cases of pulmonary embolism and cases of deep vein thrombosis, have been reported with antipsychotics. The frequency is unknown.

Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product.

4.9 Overdose
Symptoms and signs
The manifestations of haloperidol overdose are an exaggeration of the known pharmacological effects and adverse reactions. The most prominent symptoms are severe extrapyramidal reactions, hypotension and sedation. An extrapyramidal reaction is manifest by muscular rigidity and a generalised or localised tremor. Hypertension rather than hypotension is also possible.

In extreme cases, the patient would appear comatose with respiratory depression and hypotension that could be severe enough to produce a shock-like state. The risk of ventricular arrhythmias, possibly associated with QTc prolongation, must be considered.

Treatment
There is no specific antidote. Treatment is supportive. The efficacy of activated charcoal has not been established. Dialysis is not recommended in the treatment of overdose because it removes only very small amounts of haloperidol (see section 5.2).

For comatose patients, a patent airway must be established by use of an oropharyngeal airway or endotracheal tube. Respiratory depression may necessitate artificial respiration.

It is recommended that ECG and vital signs be monitored, and that monitoring continues until the ECG is normal. Treatment of severe arrhythmias with appropriate anti-arrhythmic measures is recommended.

Hypotension and circulatory collapse may be counteracted by use of intravenous fluids, plasma or concentrated albumin and vasopressor agents, such as dopamine or noradrenaline. Adrenaline must not be used because it might cause profound hypotension in the presence of haloperidol.

In cases of severe extrapyramidal reactions, parenteral administration of an antiparkinson medicinal product is recommended.

5. PHARMACOLOGICAL PROPERTIES

5.1 Pharmacodynamic properties
Pharmacotherapeutic group: psycholeptics; antipsychotics; butyrophenone derivatives.

Haloperidol is an antipsychotic belonging to the butyrophenones group. It is a potent central dopamine type 2 receptor antagonist, and at recommended doses, has low alpha-1 antiadrenergic activity and no antihistaminergic or anticholinergic activity.

Pharmacodynamic effects
Haloperidol suppresses delusions and hallucinations as a direct consequence of blocking dopaminergic signalling in the mesolimbic pathway. The central dopamine blocking effect has activity on the basal ganglia (nigrostriatal bundles). Haloperidol causes efficient psychomotor sedation, which explains the favourable effect on mania and other agitation syndromes.

The activity on the basal ganglia probably underlies the undesirable extrapyramidal motor effects (dystonia, akathisia and parkinsonism).

The antidopaminergic effects of haloperidol on lactotropes in the anterior pituitary explain hyperprolactinaemia due to inhibition of dopamine-mediated tonic inhibition of prolactin secretion.

 5.2 Pharmacokinetic properties
Absorption
The average bioavailability of haloperidol after administration of the tablet or oral solution is 60 to 70%. Peak plasma levels of haloperidol are generally attained within 2 to 6 hours of oral dosing. A high inter-subject variability in plasma concentrations was observed. Steady state is reached within 1 week of treatment initiation.

Distribution
Mean haloperidol plasma protein binding in adults is approximately 88 to 92%. There is a high inter-subject variability for plasma protein binding. Haloperidol is rapidly distributed to various tissues and organs, as indicated by the large volume of distribution (mean values 8 to 21 l/kg after intravenous dosing). Haloperidol crosses the blood-brain barrier easily. It also crosses the placenta and is excreted in breast milk.

Biotransformation
Haloperidol is extensively metabolised in the liver. The main metabolic pathways of haloperidol in humans include glucuronidation, ketone reduction, oxidative N-dealkylation and formation of pyridinium metabolites. The metabolites of haloperidol are not considered to make a significant contribution to its activity; however, the reduction pathway accounts approximately for 23% of the biotransformation, and back-conversion of the reduced metabolite of haloperidol to haloperidol cannot be fully ruled out. The cytochrome P450 enzymes CYP3A4 and CYP2D6 are involved in haloperidol metabolism. Inhibition or induction of CYP3A4, or inhibition of CYP2D6, may affect haloperidol metabolism. A decrease in CYP2D6 enzyme activity may result in increased haloperidol concentrations.

Elimination
The terminal elimination half-life of haloperidol is on average 24 hours (range of means 15 to 37 hours) after oral administration. Haloperidol apparent clearance after extravascular administration ranges from 0.9 to 1.5 l/h/kg and is reduced in poor metabolisers of CYP2D6. Reduced CYP2D6 enzyme activity may result in increased concentrations of haloperidol. The inter-subject variability (coefficient of variation, %) in haloperidol clearance was estimated to be 44% in a population pharmacokinetic analysis in patients with schizophrenia. After intravenous haloperidol administration, 21% of the dose was eliminated in the faeces and 33% in the urine. Less than 3% of the dose is excreted unchanged in the urine.

Linearity/non-linearity
A linear relationship exists between haloperidol dose and plasma concentrations in adults.

Special populations

Elderly
Haloperidol plasma concentrations in elderly patients were higher than in younger adults administered the same dose. Results from small clinical studies suggest a lower clearance and a longer elimination half-life of haloperidol in elderly patients. The results are within the observed variability in haloperidol pharmacokinetics. Dose adjustment is recommended in elderly patients (see section 4.2).

Renal impairment
The influence of renal impairment on the pharmacokinetics of haloperidol has not been evaluated. About one-third of a haloperidol dose is excreted in urine, mostly as metabolites. Less than 3% of administered haloperidol is eliminated unchanged in the urine. Haloperidol metabolites are not considered to make a significant contribution to its activity, although for the reduced metabolite of haloperidol, back-conversion to haloperidol cannot be fully ruled out. Even though impairment of renal function is not expected to affect haloperidol elimination to a clinically relevant extent, caution is advised in patients with renal impairment, and especially those with severe impairment, due to the long half-life of haloperidol and its reduced metabolite, and the possibility of accumulation (see section 4.2).

Because of the high haloperidol distribution volume and its high protein binding, only very small amounts are removed by dialysis.

Hepatic impairment
The influence of hepatic impairment on the pharmacokinetics of haloperidol has not been evaluated. However, hepatic impairment may have significant effects on the pharmacokinetics of haloperidol because it is extensively metabolised in the liver. Therefore, dose adjustment and caution is advised in patients with hepatic impairment (see sections 4.2 and 4.4).

Paediatric population
Limited plasma concentration data were established in paediatric studies including 78 patients with various disorders (schizophrenia, psychotic disorder, Tourette’s syndrome, autism) who received oral haloperidol doses up to a maximum of 30 mg/day. These studies included mainly children and adolescents aged between 2 and 17 years. Plasma concentrations measured at various time points and after various durations of treatment, were either undetectable or ranged up to a maximum of 44.3 ng/ml. As in adults, high inter-subject variability in plasma concentrations was observed. There was a trend toward shorter half-lives in children compared to adults.

In 2 studies in children receiving haloperidol treatment for tics and Tourette’s syndrome, a positive response was associated with plasma concentrations of 1 to 4 ng/ml

Pharmacokinetic/pharmacodynamics relationships

Therapeutic concentrations
Based on published data from multiple clinical studies, therapeutic response is obtained in most patients with acute or chronic schizophrenia at plasma concentrations of 1 to 10 ng/ml. A subset of patients may require higher concentrations as a consequence of a high inter-subject variability in haloperidol pharmacokinetics.

In patients with first-episode schizophrenia, therapeutic response may be obtained at concentrations as low as 0.6 to 3.2ng/ml, as estimated based on measurements of D2 receptor occupancy and assuming that a D2 receptor occupancy level of 60 to 80% is most appropriate for obtaining therapeutic response and limiting extrapyramidal symptoms. On average, concentrations in this range would be obtained with doses of 1 to 4 mg daily.

Due to the high inter-subject variability in haloperidol pharmacokinetics and the concentration-effect relationship, it is recommended to adjust the individual haloperidol dose based on the patient’s response, taking into account data suggesting a lag time of 5 days to reach half of the maximal therapeutic response. Measurement of haloperidol blood concentrations may be considered in individual cases.

Cardiovascular effects
The risk of QTc prolongation increases with haloperidol dose and with haloperidol plasma concentrations.

Extrapyramidal symptoms
Extrapyramidal symptoms can occur within the therapeutic range, although the frequency is usually higher with doses producing higher than therapeutic concentrations.

5.3 Preclinical safety data
Non-clinical data reveal no special hazards for humans based on conventional studies of repeat dose toxicity and genotoxicity. In rodents, haloperidol administration showed a decrease in fertility, limited teratogenicity as well as embryo-toxic effects.

In a carcinogenicity study of haloperidol, dose-dependent increases in pituitary gland adenomas and mammary gland carcinomas were seen in female mice. These tumours may be caused by prolonged dopamine D2 antagonism and hyperprolactinaemia. The relevance of these tumour findings in rodents in terms of human risk is unknown.

Haloperidol has been shown to block the cardiac hERG channel in several published studies in vitro. In a number of in vivo studies, intravenous administration of haloperidol in some animal models has caused significant QTc prolongation at doses around 0.3 mg/kg, producing Cmax plasma levels at least 7 to 14 times higher than the therapeutic plasma concentrations of 1 to 10 ng/ml that were effective in the majority of patients in clinical studies. These intravenous doses, which prolonged QTc, did not cause arrhythmias. In some animal studies, higher intravenous haloperidol doses of 1 mg/kg or greater caused QTc prolongation and/or ventricular arrhythmias at Cmax plasma levels at least 38 to 137 times higher than the therapeutic plasma concentrations that were effective in the majority of patients in clinical studies.

6. PHARMACEUTICAL PARTICULARS

6.1 List of excipients
Lactic acid
Methylhydroxybenzoate
Propylhydroxybenzoate
Propylene Glycol
Purified Water

6.2 Incompatibilities
None known.

6.3  Shelf life
3 years.

6.4 Special precautions for storage
Do not store above 25°C. Store in the original container.

6.5 Nature and contents of container
100 ml, 200 ml and 500 ml type III amber glass bottle with 28 x 18 ROPP LDPE plain white or aluminium cap with EPE (expanded polyethylene) wads and epoxy phenolic lacquer or child resistant closures with expanded polyethylene liners.
100 ml, 200 ml and 500 ml high density polyethylene bottle with 28 mm white polypropylene closure.
Not all pack sizes may be marketed.

6.6 Special precautions for disposal and other handling
Not applicable.

7. Manufactured In India By:
TAJ PHARMACEUTICALS LTD.
Mumbai, India
Unit No. 214.Old Bake House,
Maharashtra chambers of  Commerce Lane,
Fort, Mumbai – 400001
at:Gujarat, INDIA.
Customer Service and Product Inquiries:
1-800-TRY-FIRST (1-800-222-434 & 1-800-222-825)
Monday through Saturday 9:00 a.m. to 7:00 p.m. EST
E-mail: tajgroup@tajpharma.com

Haloperidol Oral Solution USP 5mg/5ml Taj Pharma

Package leaflet: Information for the patient

Haloperidol Oral Solution USP 5mg/5ml Taj Pharma

Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
– Keep this leaflet. You may need to read it again.
 – If you have any further questions, ask your doctor or pharmacist.
– This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
– If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor.

What is in this leaflet
1. What  Haloperidol is and what it is used for
2. Before you are given Haloperidol
3. How you will be given  Haloperidol
4. Possible side effects
5. How Haloperidol is stored
6. Further Information

1. What Haloperidol is and what it is used for
The name of your medicine is Haloperidol Oral Solution BP 5 mg/5 ml (“Haloperidol”).

Haloperidol contains the active substance haloperidol. This belongs to a group of medicines called ‘antipsychotics’.

Haloperidol is used in adults, adolescents and children for illnesses affecting the way you think, feel or behave. These include mental health problems (such as schizophrenia and bipolar disorder) and behavioural problems.

These illnesses may make you:
• feel confused (delirium)
• see, hear, feel or smell things that are not there (hallucinations)
• believe things that are not true (delusions)
• feel unusually suspicious (paranoia)
• feel very aggressive, hostile or violent
• feel very excited, agitated, enthusiastic, impulsive or hyperactive.

In adolescents and children, Haloperidol is used to treat schizophrenia in patients aged 13 to 17 years, and to treat behavioural problems in patients aged 6 to 17 years.

Haloperidol is also used:
• in adolescents and children aged 10 to 17 years and in adults for movements or sounds you can’t control (tics), for example in severe Tourette’s syndrome
• in adults to help control movements in Huntington’s disease.

Haloperidol is sometimes used when other medicines or treatments have not worked or caused unacceptable side effects.

2. Before you are given Haloperidol
Do NOT take Haloperidol:
• if you are allergic to haloperidol or any of the other ingredients of this medicine (listed in section 6).
• if you are less aware of things around you or your reactions become unusually slow
• if you have Parkinson’s disease
• if you have a type of dementia called ‘Lewy body dementia’
• if you have progressive supranuclear palsy (PSP)
• if you have a heart condition called ‘prolonged QT interval’, or any other problems with your heart rhythm that shows as an abnormal tracing on an ECG (electrocardiogram)
• if you have heart failure or recently had a heart attack
• if you have a low level of potassium in your blood, which has not been treated
• if you take any of the medicines listed under ‘Other medicines and Haloperidol – Do not take Haloperidol if you are taking certain medicines for’.
Do not take this medicine if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Haloperidol.

Warnings and precautions
Serious side effects
Haloperidol can cause problems with the heart, problems controlling body or limb movements and a serious side effect called ‘neuroleptic malignant syndrome’. It can also cause severe allergic reactions and blood clots. You must be aware of serious side effects while you are taking Haloperidol because you may need urgent medical treatment. See ‘Look out for serious side effects’ in section 4.

Elderly people and people with dementia
A small increase in deaths and strokes has been reported for elderly people with dementia who are taking antipsychotic medicines.
Talk to your doctor or pharmacist before taking Haloperidol if you are elderly, particularly if you have dementia.

Talk to your doctor or pharmacist if you have:
• a slow heartbeat, heart disease or anyone in your close family has died suddenly of heart problems
• low blood pressure, or feel dizzy upon sitting up or standing up
• a low level of potassium or magnesium (or other ‘electrolyte’) in your blood. Your doctor will decide how to treat this
• ever had bleeding in the brain, or your doctor has told you that you are more likely than other people to have a stroke
• epilepsy or have ever had fits (convulsions)
• problems with your kidneys, liver or thyroid gland
• a high level of the hormone ‘prolactin’ in your blood, or cancer that may be caused by high prolactin levels (such as breast cancer)
• a history of blood clots, or someone else in your family has a history of blood clots
• depression, or you have bipolar disorder and start to feel depressed.

You may need to be more closely monitored, and the amount of Haloperidol you take may have to be altered. If you are not sure if any of the above applies to you, talk to your doctor or pharmacist before taking Haloperidol.

Medical check ups
Your doctor may want to take an electrocardiogram (ECG) before or during your treatment with Haloperidol. The ECG measures the electrical activity of your heart.

Blood tests
Your doctor may want to check the levels of potassium and magnesium (or other ‘electrolyte’) in your blood before or during your treatment with Haloperidol.

Children below 6 years of age
Haloperidol should not be used in children below 6 years of age. This is because it has not been studied adequately in this age group.

Other medicines and Haloperidol
Tell your doctor if you are taking, have recently taken or might take any other medicines.

Do not take Haloperidol if you are taking certain medicines for:
• problems with your heart beat (such as amiodarone, dofetilide, disopyramide, dronedarone, ibutilide, quinidine and sotalol)
• depression (such as citalopram and escitalopram)
• psychoses (such as fluphenazine, levomepromazine, perphenazine, pimozide, prochlorperazine, promazine, sertindole, thiorizadine, trifluoperazine, triflupromazine and ziprasidone)
• bacterial infections (such as azithromycin, clarithromycin, erythromycin, levofloxacin, moxifloxacin and telithromycin)
• fungal infections (such as pentamidine)
• malaria (such as halofantrine)
• nausea and vomiting (such as dolasetron)
• cancer (such as toremifene and vandetanib)
Also tell your doctor if you are taking bepridil (for chest pain or to lower blood pressure) or methadone (a pain killer or to treat drug addiction). These medicines may make heart problems more likely, so talk to your doctor if you are taking any of these and do not take Haloperidol (see ‘Do not take Haloperidol if’)

Special monitoring may be needed if you are taking lithium and Haloperidol at the same time.
Tell your doctor straight away and stop taking both medicines if you get:
• Fever you can’t explain or movements you can’t control
• Confused, disorientated, a headache, balance problems and feel sleepy.

Certain medicines may affect the way that Haloperidol works or may make heart problems more likely
Tell your doctor if you are taking:
• duloxetine, fluoxetine, fluvoxamine, nefazodone, paroxetine, sertraline, St John’s Wort (Hypericum perforatum) or venlafaxine (for depression)
• alprazolam or buspirone (for anxiety)
• bupropion (for depression or to help you stop smoking)
• carbamazepine, phenobarbital or phenytoin (for epilepsy)
• ketoconazole tablets (to treat Cushing’s syndrome)
• rifampicin (for bacterial infections)
• chlorpromazine or promethazine (for nausea and vomiting)
• verapamil (for blood pressure or heart problems)
• itraconazole, posaconazole or voriconazole (for fungal infections)
• indinavir, ritonavir or saquinavir (for human immunodeficiency virus or HIV).

Also tell your doctor if you are taking any other medicines to lower blood pressure, such as water tablets (diuretics).
Your doctor may have to change your dose of Haloperidol if you are taking any of these medicines.

Haloperidol can affect the way the following types of medicine work
Tell your doctor if you are taking medicines for:
• pain (strong pain killers)
• calming you down or helping you to sleep (tranquillisers)
• depression (‘tricyclic antidepressants’)
• severe allergic reactions (adrenaline)
• Parkinson’s disease (such as levodopa)
• thinning the blood (phenindione)
• lowering blood pressure (such as guanethidine and methyldopa)
• attention deficit hyperactivity disorder (ADHD) or narcolepsy (known as ‘stimulants’).
Talk to your doctor before taking Haloperidol if you are taking any of these medicines.

Haloperidol and alcohol
Drinking alcohol while you are taking Haloperidol might make you feel sleepy and less alert. This means you should be careful how much alcohol you drink. Talk to your doctor about drinking alcohol while taking Haloperidol, and let your doctor know how much you drink.

Pregnancy, breast-feeding and fertility
Pregnancy – if you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor for advice. Your doctor may advise you not to take Haloperidol while you are pregnant.
The following problems may occur in newborn babies of mothers that take Haloperidol in the last 3 months of their pregnancy (the last trimester):
• muscle tremors, stiff or weak muscles
• being sleepy or agitated
• problems breathing or feeding.
The exact frequency of these problems is unknown. If you took Haloperidol while pregnant and your baby develops any of these side effects, contact your doctor.

Breast-feeding – talk to your doctor if you are breast-feeding or planning to breast-feed. This is because small amounts of the medicine may pass into the mother’s milk and on to the baby. Your doctor will discuss the risks and benefits of breast-feeding while you are taking Haloperidol.

Fertility – Haloperidol may increase your levels of a hormone called ‘prolactin’, which may affect fertility in men and women. Talk to your doctor if you have any questions about this.

Driving and using machines
Haloperidol can affect your ability to drive and use tools or machines. Side effects, such as feeling sleepy, may affect your alertness, particularly when you first start taking it or after a high dose. Do not drive or use any tools or machines without discussing this with your doctor first.

Haloperidol contains methylhydroxybenzoate and propylhydroxybenzoate
• Methylhydroxybenzoate (E218) and propylhydroxybenzoate (E216): may cause allergic reactions (possibly delayed).

3. How you will be given Haloperidol
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.

 How much should you take
Your doctor will tell you how much Haloperidol to take and for how long. Your doctor will also tell you whether to take Haloperidol one or more times a day. It may be some time before you feel the full effect of the medicine. Your doctor will normally give you a low dose to start, and then adjust the dose to suit you. It is very important you take the correct amount.

Your dose of haloperidol will depend on:
• your age
• what conditions you are being treated for
• whether you have problems with your kidneys or liver
• other medicines you are taking.

Adults
• Your dose will normally be between 0.5 mg and 10 mg each day.
• Your doctor may adjust this to find the dose that suits you best.
• The highest dose adults should take depends on the condition you are being treated for and varies between 5 mg and 20 mg each day.

Elderly people
• Elderly people will normally start on 0.5 mg each day or half the lowest adult dose.
• The amount of Haloperidol you take will then be adjusted until the doctor finds the dose that suits you best.
• The highest dose elderly people should take is 5 mg each day unless your doctor decides a higher dose is needed.

Children and adolescents 6 to 17 years of age
• Your dose will normally be between 0.5 mg and 3 mg each day.
• Adolescents up to 17 years of age being treated for schizophrenia or behavioural problems may have a higher dose, up to 5 mg each day.

Taking Haloperidol
• Haloperidol is for oral use.
• Shake well before use.
• An oral syringe is included in the pack to help you take the correct dose.

If you take more Haloperidol than you should
If you take more Haloperidol than you were told to or if someone else has taken any Haloperidol, talk to a doctor or go to the nearest hospital casualty department straight away.

If you forget to take Haloperidol
• If you forget to take a dose, take your next dose as usual. Then keep taking your medicine as your doctor has told you.
• Do not take a double dose to make up for a forgotten dose.

If you stop taking Haloperidol
Unless your doctor tells you otherwise, you should stop taking Haloperidol gradually. Stopping treatment suddenly may cause effects such as:
• Nausea and vomiting
• Difficulty sleeping.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

4. Possible Side Effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.

Look out for serious side effects
Tell your doctor straight away if you notice or suspect any of the following. You may need urgent medical treatment.

Problems with the heart:
• abnormal heart rhythm – this stops the heart working normally and may cause loss of consciousness
• abnormally fast heart beat
• extra heart beats.
Heart problems are uncommon in people taking Haloperidol (may affect up to 1 in 100 people). Sudden deaths have occurred in patients taking this medicine, but the exact frequency of these deaths is unknown. Cardiac arrest (the heart stops beating) has also occurred in people taking antipsychotic medicines.

A serious problem called ‘neuroleptic malignant syndrome’.
This causes a high fever, severe muscle stiffness, confusion and loss of consciousness. It is rare in people taking Haloperidol (may affect up to 1 in 1,000 people).

Problems controlling movements of the body or limbs (extrapyramidal disorder), such as:
• movements of the mouth, tongue, jaw and sometimes limbs (tardive dyskinesia)
• feeling restless or difficulty sitting still, increased body movements
• slow or reduced body movements, jerking or twisting movements
• muscle tremors or stiffness, a shuffling walk
• being unable to move
• lack of normal facial expression that sometimes looks like a mask.
These are very common in people taking Haloperidol (may affect more than 1 in 10 people). If you get any of these effects, you may be given an additional medicine.

Severe allergic reaction that may include:
• a swollen face, lips, mouth, tongue or throat
• difficulty swallowing or breathing
• itchy rash (hives). An allergic reaction is uncommon in people taking Haloperidol (may affect up to 1 in 100 people).

Blood clots in the veins, usually in the legs (deep vein thrombosis or DVT). These have been reported in people taking antipsychotic medicines. The signs of a DVT in the leg include swelling, pain and redness in the leg, but the clot may move to the lungs causing chest pain and difficulty in breathing. Blood clots can be very serious, so tell your doctor straight away if you notice any of these problems.

Tell your doctor straight away if you notice any of the serious side effects above.

Other side effects
Tell your doctor if you notice or suspect any of the following side effects.
Very common
(may affect more than 1 in 10 people):
• feeling agitated
• difficulty sleeping
• headache.

Common (may affect up to 1 in 10 people):
• serious mental health problem, such as believing things that are not true (delusions) or seeing, feeling, hearing or smelling things that are not there (hallucinations)
• depression
• abnormal muscle tension
• feeling dizzy, including upon sitting up or standing up
• feeling sleepy
• upward movement of the eyes or fast eye movements that you cannot control
• problems with vision, such as blurred vision
• low blood pressure
• nausea, vomiting
• constipation
• dry mouth or increased saliva
• skin rash
• being unable to pass urine or empty the bladder completely
• difficulty getting and keeping an erection (impotence)
• weight gain or loss
• changes that show up in blood tests of the liver.

Uncommon (may affect up to 1 in 100 people):
• effects on blood cells – low number of all types of blood cells, including severe decreases in white blood cells and low number of ‘platelets’ (cells that help blood to clot)
• feeling confused
• loss of sex drive or decreased sex drive
• fits (seizures)
• stiff muscles and joints
• muscle spasms, twitching or contractions that you cannot control, including a spasm in the neck causing the head to twist to one side
• problems walking
• being short of breath
• inflamed liver, or liver problem that causes yellowing of the skin or eyes (jaundice)
• increased sensitivity of the skin to sunlight
• itching
• excessive sweating
• unexpected production of breast milk
• changes in menstrual cycle (periods), such as no periods, or long, heavy, painful periods
• breast pain or discomfort
• high body temperature
• swelling caused by fluid build up in the body.

Rare (may affect up to 1 in 1,000 people):
• narrowed airways in the lungs, causing difficulty breathing
• high level of the hormone ‘prolactin’ in the blood
• difficulty or being unable to open the mouth
• problems having sex.

The following side effects have also been reported, but their exact frequency is unknown:
• high level of ‘antidiuretic hormone’ in the blood (syndrome of inappropriate antidiuretic hormone secretion)
• low level of sugar in the blood
• sudden liver failure
• swelling around the voice box or brief spasm of the vocal cords, which may cause difficulty speaking or breathing
• decreased bile flow in the bile duct
• flaking or peeling skin
• inflamed small blood vessels, leading to a skin rash with small red or purple bumps
• breakdown of muscle tissue (rhabdomyolysis)
• persistent and painful erection of the penis
• enlarged breasts in men
• low body temperature.

Reporting of side effects:
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. By reporting side effects you can help provide more information on the safety of this medicine.

5. How Haloperidol is stored
Keep this medicine out of the sight and reach of children.
Do not store above 25˚C.
Keep container in the outer carton. Do not use Haloperidol after the expiry date which is stated on the label or carton.
Do not throw away any medicines via wastewater or household waste.
Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Further information

What Haloperidol contains
• The active ingredient is haloperidol
Each 5 ml contains: Haloperidol USP      5mg

  • The other ingredients are: lactic acid, methylhydroxybenzoate, propylhydroxybenzoate, propylene glycol and purified water (see end of Section 2 for further information).

What Haloperidol looks like and contents of the pack
Haloperidol is a clear colourless oral solution, and is available in amber glass or plastic bottles of 100 ml, 200 ml and 500 ml.
Not all pack sizes may be marketed.

7. Manufactured In India By:
TAJ PHARMACEUTICALS LTD.
Mumbai, India
Unit No. 214.Old Bake House,
Maharashtra chambers of  Commerce Lane,
Fort, Mumbai – 400001
at:Gujarat, INDIA.
Customer Service and Product Inquiries:
1-800-TRY-FIRST (1-800-222-434 & 1-800-222-825)
Monday through Saturday 9:00 a.m. to 7:00 p.m. EST
E-mail: tajgroup@tajpharma.com