Full instructions, dosage information and potential known side effects are all available in the leaflet that comes with the prescription product. If you require any advice or assistance with placing your order, please donâ€™t hesitate to contact our team.
How do I take/use this medicine?
Haloperidol Intramuscular injection is to be injected into the buttock muscles.
Your doctor or nurse will administer the injection for you. This injection will usually be made only ONCE a month. Your doctor will advise you about how often you need this injection.
You may need to use Haloperidol Intramuscular injection for some time before the full benefits can be felt. Do not be discouraged if you do not feel better soon after the injection has been given. It may take a few weeks for this injection to take effect. This is because the medicine is being released slowly from the site of injection. Over the long-term, this slow-release injection helps to give better control of your condition.
It is important that you continue with the injections even when you feel well. Do not stop using Haloperidol Intramuscular injection unless your doctor has decided to do so. If this medicine is stopped suddenly, you may feel unwell or your condition may worsen. When your doctor decides that you do not need Haloperidol Intramuscular injection anymore, he will usually reduce your dose slowly.
In order for you to get the most benefit from Haloperidol Intramuscular injection, use it exactly as advised by your doctor. Do not use more or less than prescribed and do not skip any doses.
What should I take note of while using/taking this medicine?
Alert your doctor if you are pregnant or if you become pregnant while being treated with Haloperidol or within 4 weeks of the last injection. Use effective birth control methods while being treated with Haloperidol.
Do not breastfeed while being treated with Haloperidol and for at least 4 weeks after the last injection of Haloperidol. Alert your doctor if you are breastfeeding.
Inform your doctor if you have any of these conditions:
- heart disease including family history
- thyroid disease
- lung, liver or kidney disease
- an enlarged prostate or difficulty urinating
- bowel blockage or bowel paralysis (paralytic ileus) which causes severe constipation
- other bowel diseases
- Alzheimer's disease
- glaucoma (high pressure in the eye)
- epilepsy (fits)
- myasthenia gravis (a condition that causes muscle weakness)
- breast cancer or tumours dependent on a hormone known as prolactin
- a tendency to develop blood clots or if you ever had blood clots in the leg (deep vein thrombosis or DVT) or lung (pulmonary embolism or PE)
- recent stroke or a transient ischaemic attack (also known as a TIA or a "mini-stroke")
- adrenal gland tumour called phaeochromocytoma
- bone marrow depression or a low white blood cell count
If you are going for an operation, including minor operations and dental work, inform your doctor or dentist that you are being treated with Haloperidol.
Haloperidol may affect the ability of your body to adjust to temperature changes in the environment. Avoid exposure to very cold or very hot environments.
Always keep your appointments with your doctor so that he will be able to monitor your response to Haloperidol.
When should I not use this medicine?
Alert your doctor if you have any of these conditions:
- any kind of heart disease such as an abnormal heart rhythm, conduction problems (heart block) or bradycardia (unusually slow heart rate)
- recent heart attack
- low levels of potassium, calcium or magnesium in the blood
- Parkinson's disease
Haloperidol is not suitable for elderly people with psychosis that is related to dementia.
Haloperidol Intramuscular is not meant for use in children.
Are there any restrictions on the type of food I can take?
Avoid alcohol. Alcohol will worsen the dizziness and drowsiness caused by Haloperidol.
Why do I need this medicine?
Haloperidol Intramuscular injection is used to treat schizophrenia and paranoia. It helps to relieve symptoms common in schizophrenia and paranoia, such as distorted thinking and emotional instability.
Haloperidol Intramuscular injection is also used in Tourette's disorder to control movement and verbal tics (uncontrollable urge to repeat certain movements, words or sounds).
It is also used to treat severe behavioural problems such as unprovoked aggressiveness, violence or abnormal excitability in the mentally challenged and in people who have suffered brain damage.
Haloperidol is also used to treat other conditions such as:
- a dysfunctional mood condition called bipolar disorder (mania)
- restlessness and agitation in elderly people
- severe hiccups that cannot be stopped
- severe nausea and vomiting in cancer chemotherapy
What side effects could I experience?
Haloperidol may cause you to temporarily develop some symptoms similar to Parkinson's disease such as slow movements, shaky or stiff hands or legs, poor sense of balance, drooling, lethargy and fixed stare. These symptoms may be more frequent during the first few days of starting treatment or may occur if your dose is being adjusted. Alert your doctor if these symptoms appear.
Haloperidol may also make you drowsy or dizzy. If you feel drowsy or dizzy, do not drive or take part in any activity in which you need to be alert.
You may feel dizzy when getting up from a sitting or lying down position, especially if you are taking Haloperidol for the first time or if your dose is still being adjusted. This is normal and should disappear gradually as you get used to the medicine. It will help if you get up slowly from a sitting or lying down position.
Other common side effects of Haloperidol include headache, excitement, mood changes including depression, difficulty sleeping, dry mouth, nausea, loss of appetite, blurred vision, excessive sweating, constipation, rash, problems passing urine, erectile dysfunction and weight changes. Alert your doctor if any side effects are severe or persist.
Haloperidol may affect the way your body adjusts to temperature changes. Avoid exposure to very cold or very hot environments.
Other side effects are less common but may need immediate medical help. Alert your doctor immediately if you develop any of these symptoms:
- fast or irregular heartbeat
- any signs of an impending heart attack
- difficulty breathing or wheezing
- uncontrolled muscle movements of your body, face or tongue, such as lip smacking or worm-like movements of the tongue
- muscle stiffness or spasm with excessive sweating
- uncontrollable urge to move constantly or an inability to sit still
- excessive drowsiness, dizziness or if you faint
- unexplained fever
- confusion or disorientation
- rapid rise in your body temperature or an inability to cool down on a hot day
- yellowing of the eyes or skin
- swelling, redness or pain of the lower leg
- severe tiredness or weakness
- fever with persistent sore throat or mouth ulcers, or other signs of infection
How should I store this medicine?
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.
Can I take/use this with other medicines?
Alert your doctor if you are taking any other medicine especially those listed here:
- sleeping pills, antidepressants
- certain painkillers such as codeine or morphine
- hay fever medicines that may cause drowsiness
- medicines for high blood pressure such as guanethidine and methyldopa
- blood-thinning medicines such as warfarin
- epilepsy (fits) medicines such as carbamazepine or phenobarbitone
- diuretics ("water pills")
- mood medicines such as lithium, fluoxetine, buspirone
- medicines for irregular heart rhythm such as disopyramide, quinidine
- rifampicin (a tuberculosis medication)
- levodopa (Parkinson's disease medication)
Always inform your doctor or pharmacist if you are taking any other medicines, including herbal tonics, supplements and medicines that you buy without a prescription.