It may be used in people who have trouble remembering to take medication every day. This medicine helps you to think more clearly, feel less nervous, and take part in everyday life. It can also prevent suicide in people who are likely to harm themselves. It also reduces aggression and the desire to hurt others. It can decrease negative thoughts and hallucinations. Haloperidol decanoate is a long-acting form of psychiatric medication antipsychotic -type that works by helping to restore the balance of certain natural substances neurotransmitters in the brain.
OTHER This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.
Haloperidol is also used for severe behavior problems in hyperactive children when other treatments or medications have not worked. Most likely, you have used the form of haloperidol that is taken by mouth.
Your doctor is using this form of haloperidol so that you won't have to remember to take this medication every day. This medication is the long-acting form of haloperidol. It is injected deep into a muscle usually the buttocks by a healthcare professional. Your first dose may be divided and given in separate injections given days apart. After your doctor has found the best dose for you, this medication is usually given once every weeks.
Your dosage is based on your condition and response to therapy. This medication takes a while to start working, so you will need to continue to take your other medication by mouth until your doctor tells you to stop.
This medication must be used as prescribed. Do not suddenly stop using this drug without consulting your doctor. Some conditions may worsen if the medication is suddenly stopped. Inform your doctor if your symptoms do not improve or if they worsen. Dizziness , drowsiness, difficulty urinating , trouble sleeping, headache , anxiety , and pain at the injection site may occur.
If these effects persist or worsen, notify your doctor or pharmacist promptly. Tell your doctor promptly if any of these side effects occur: Your doctor may prescribe another medication for you to take with haloperidol to decrease these side effects. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
In rare cases, haloperidol may increase your level of a certain chemical made by the body prolactin. For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor immediately. For males, in the unlikely event you have a painful or prolonged erection lasting more than 4 hours , stop using this drug and seek immediate medical attention, or permanent problems may occur.
This medication may rarely cause a condition known as tardive dyskinesia. In some cases, this condition may be permanent. This medication may rarely cause a very serious condition called neuroleptic malignant syndrome NMS. Get medical help right away if you have any of the following symptoms: Tell your doctor immediately if any of these rare but very serious side effects occur: Seek immediate medical attention if any of these rare but very serious side effects occur: A very severe allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs.
Symptoms of an allergic reaction include: This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US -Call your doctor for medical advice about side effects.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at Before using haloperidol, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
This product may contain inactive ingredients such as sesame oil , which can cause allergic reactions or other problems. Talk to your pharmacist for more details. This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: Before using this medication, tell your doctor or pharmacist your medical history, especially of: Haloperidol decanoate may cause a condition that affects the heart rhythm QT prolongation.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using haloperidol decanoate, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation.
Talk to your doctor about using haloperidol decanoate safely. This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely.
Before having surgery, be sure to tell your doctor or dentist that you are using haloperidol. This medication can reduce sweating, making you more likely to get heatstroke.
Avoid hard work and exercise in hot weather. Older adults may be more sensitive to the side effects of this drug, especially drowsiness, difficulty urinating, and heart effects such as QT prolongation see above. During pregnancy , this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Do not stop taking this medication unless directed by your doctor.
If you notice any of these symptoms in your newborn anytime during their first month, tell the doctor right away. This drug passes into breast milk and could have undesirable effects on a nursing infant. Consult your doctor before breast-feeding. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: Many drugs besides haloperidol decanoate may affect the heart rhythm QT prolongation , including amiodarone , dofetilide , pimozide , quinidine , sotalol , procainamide , and macrolide antibiotics such as erythromycin , among others.
Therefore, before using haloperidol, report all medications you are currently using to your doctor or pharmacist. Also report the use of drugs which might increase seizure risk decrease seizure threshold when combined with haloperidol such as: Consult your pharmacist or doctor for more information.
Tell your doctor of pharmacist if you also take drugs that cause drowsiness such as: Check the labels on all your medicines e. Ask your pharmacist about the safe use of those products.
If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at Canada residents can call a provincial poison control center. If you miss an appointment, call your doctor as soon as possible to set up an appointment. It is important that you stay on schedule with this medication. This medication is given in a doctor's office and will not be stored at home.
The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of particular drug is safe, appropriate or effective for you or anyone else.
A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment. Learn about heart disease, heart attack symptoms, and the signs of a heart attack. Read about heart disease diagnostic tests, treatments, and heart disease prevention. Dental Oral Health Quiz. Causes of a Heart Attack Slideshow. Information last revised February