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Same active ingredient — pay up to 51% less
These brands contain the same active ingredient (Haloperidol). Same strength and form. Confirm the switch with your doctor or pharmacist.
More from Perigen
Other strengths and forms by General Pharmaceuticals Ltd.
Indications & Uses
Perigen is indicated for:
Pharmacology
Haloperidol, a butyrophenone derivative, is an antipsychotic that has proven particularly effective for controlling hyperactivity, agitation, and mania. It works well as a neuroleptic and also has antiemetic properties. It may lower body temperature, reduce appetite, and strengthen the effects of barbiturates, general anesthetics, and other drugs that depress the central nervous system (CNS). Haloperidol acts quickly, and a single dose keeps working for about 12 hours, so the best daily regimen is to take it in 2 doses.
Dosage Reference
Reference Information Only
Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.
Adults:
Haloperidol tablets, starting dose for adults:
Moderate symptoms: 0.5 mg to 3.0 mg, 2 to 3 times daily.
Severe symptoms: 3.0 mg to 5.0 mg, 2 to 3 times daily.
Elderly patients: 0.5 mg to 4.5 mg, 2 to 3 times daily.
Chronic or resistant patients: 3.0 mg to 6.0 mg, 2 to 3 times daily.
Patients who stay severely disturbed or are not well controlled may need the dose adjusted. In some cases a daily dose of up to 100 mg may be necessary to get a good response.
Children: a suggested dose for managing behaviour disorders in disturbed and schizophrenic children is 50 microgram per kg body weight.
Haloperidol injection (intramuscular or intravenous), for schizophrenia and other psychosis, and mania:
Start with 2 to 10 mg, then repeat every 4 to 8 hours according to response, up to a total maximum of 18 mg daily. Severely disturbed patients may need an initial dose of up to 18 mg. For elderly or debilitated patients, the starting dose is half the adult dose. The injection is not recommended for children.
Side Effects
Halop is a safe neuroleptic. The most commonly encountered side effects are headache, vertigo and insomnia. Drowsiness, lethargy, stupor, confusion, restlessness, agitation, anxiety, euphoria and a worsening of psychotic symptoms, including hallucinations, may also occur. Dry mouth, blurred vision, urinary retention, heartburn, nausea, vomiting, loss of appetite, diarrhoea and excessive salivation have also been reported.
Cautions & Contraindications
Warnings & Precautions
Haloperidol may lower the seizure threshold and has been reported to trigger seizures in people with epilepsy whose condition was previously well controlled. When starting Haloperidol in these patients, adequate anticonvulsant treatment should be continued alongside it. As with other antipsychotic medicines, Haloperidol should be used with care in patients with severe liver or kidney impairment, and in those with a known allergy or history of allergy to other neuroleptic drugs. Care is also needed in patients with pheochromocytoma, and in those with conditions that make seizures more likely, such as alcohol withdrawal and brain injury. Because Haloperidol may strengthen the effects of strong painkillers or sleeping medicines, caution is advised when prescribing it to patients who take such drugs regularly.
Contraindications
Haloperidol should not be used in patients who are in a coma or who have CNS depression caused by alcohol or other depressant drugs. It is also contraindicated in severe depressive states, in those with a history of spastic diseases, in patients with lesions of the basal ganglia, and in Parkinson's syndrome, except where the problem is dyskinesia brought on by levodopa treatment. People who are sensitive to haloperidol should not take it, nor should senile patients who already have Parkinson-like symptoms.
Pregnancy & Breastfeeding
Safety in pregnancy and breastfeeding has not been established. Haloperidol should not be given to women who could become pregnant or to nursing mothers unless, in the physician's judgment, the expected benefits clearly outweigh the potential risk to the unborn baby or nursing infant. The drug does pass into breast milk.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Overdose
With an overdose of haloperidol, the symptoms are usually just stronger versions of its known effects and adverse reactions. The most prominent are severe extrapyramidal reactions, hypotension or sedation. A patient may look comatose, with depressed breathing and low blood pressure. That drop in blood pressure can be severe enough to cause a shock-like state.
⚠️ In an emergency call 999 or go to the nearest hospital emergency department.
Storage
Store Haloperidol at a temperature no higher than 30°C. Keep it away from light, and keep it out of the reach of children.
Drug Interactions
Common questions about Perigen 5 mg
What is Perigen 5 mg Tablet?
Perigen 5 mg Tablet is a medicine that contains Haloperidol. It is made by General Pharmaceuticals Ltd. It belongs to the Butyrophenone drugs group of medicines.
What is Perigen used for?
Perigen is used for: Alzheimer's Disease, Nausea and Vomiting, Anxiety, Insomnia, Schizophrenia, Bipolar Disorder.
What are the side effects of Perigen?
Halop is a safe neuroleptic. The most commonly encountered side effects are headache, vertigo and insomnia.
Can I take Perigen during pregnancy or while breastfeeding?
Safety in pregnancy and breastfeeding has not been established. Haloperidol should not be given to women who could become pregnant or to nursing mothers unless, in the physician's judgment, the expected benefits clearly outweigh the potential risk to the unborn baby or nursing infant. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
What happens if I take too much Perigen?
With an overdose of haloperidol, the symptoms are usually just stronger versions of its known effects and adverse reactions. The most prominent are severe extrapyramidal reactions, hypotension or sedation. In an emergency call 999 or go to the nearest hospital emergency department.
How should I store Perigen?
Store Haloperidol at a temperature no higher than 30°C. Keep it away from light, and keep it out of the reach of children.
Can I take other medicines with Perigen?
Some medicines can interact with Haloperidol, for example: Cabergoline, Paroxetine Hydrochloride, Methyldopa, Levodopa, Propantheline Bromide, Rifampicin + Isoniazid. Tell your doctor or pharmacist about every medicine you take.
Is there a cheaper medicine with the same ingredient?
G-Haloperidol by Gonoshasthaya Pharmaceuticals Ltd. has the same ingredient and strength for ৳0.49 per unit, compared with ৳1.00 for Perigen. Ask your doctor or pharmacist before switching.
Do I need a prescription for Perigen?
Perigen is a prescription (Rx) medicine. Take it as your doctor advises.