Haloperidol is used to treat some mental health problems such as schizophrenia. It is also sometimes used for other conditions such as nausea and vomiting.
Haloperidol is given as an injection into a vein, muscle or under the skin.
If you miss an appointment for your injection, contact your health professional as soon as possible.
Some medicines available without a prescription may react with haloperidol including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. St John's wort, valerian) or recreational drugs (e.g. cannabis).
|Side Effects||Recommended action|
Fever, stiffness, sweating, confusion
Feeling restless, strange or uncontrolled movements, tremor
Fast or irregular heartbeat, fainting
Symptoms of a blood clot including: sudden shortness of breath, swelling or pain in one leg
Symptoms of liver problems including: yellow skin or eyes, itching, dark urine, pale bowel motions, abdominal pain
Prolonged erection (longer than four hours)
|Tell your doctor immediately|
Dry mouth, blurred vision, constipation, trouble peeing
Changes in periods
Sore or enlarged breasts, breastmilk production
Less interest in sex, impotence
Pain, tenderness or redness at injection site
|Tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. January 2020
For more general information about this sheet annd its contents, see: What does a My Medicines sheet cover?
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed