Haloperidol (By mouth)
Treats mental and emotional disorders, behavior problems, and Tourette syndrome.
When This Medicine Should Not Be Used
How to Use This Medicine
- Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
- Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Some medicines can affect how haloperidol works. Tell your doctor if you are using any of the following:
- Lithium, rifampin
- Blood pressure medicine
- Blood thinner (including phenindione, warfarin)
- Medicine to treat heart rhythm problems
- Medicine to treat Parkinson's disease
- Medicine to treat seizures
- Tell your doctor if you use anything else that makes you sleepy. Some examples are allergy medicine, narcotic pain medicine, and alcohol.
- Do not drink alcohol while you are using this medicine.
Warnings While Using This Medicine
- Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, brain disease, heart or blood vessel disease, heart rhythm problems, lung or breathing problems, mental health problems, Parkinson disease, thyroid problems, or history of breast cancer or seizures.
- This medicine may cause the following problems:
- Heart rhythm problems (including QT prolongation)
- Tardive dyskinesia (movement disorder)
- Neuroleptic malignant syndrome
- Lung or breathing problems
- This medicine may make you dizzy or drowsy, or may cause trouble with controlling body movements, which may lead to falls, fractures or other injuries. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
- You might get overheated more easily while using this medicine. Be aware of this if you are exercising or the weather is hot. Drinking water might help. If you get too hot and feel dizzy, weak, tired, confused, or sick to your stomach, you need to cool down.
- This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.
- Do not stop using this medicine suddenly. Your doctor will need to slowly decrease your dose before you stop it completely.
- Your doctor will check your progress and the effects of this medicine at regular visits. Keep all appointments.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Fast, slow, or pounding heartbeat
- Fever, chills, cough, sore throat, body aches
- Jerky muscle movement you cannot control (often in your face, tongue, or jaw)
- Lightheadedness, dizziness, fainting
- Seizures or tremors
- Sweating, confusion, uneven heartbeat, muscle stiffness
- Twitching or muscle movements you cannot control, problems with balance or walking
- Unusual bleeding, bruising, or weakness
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
- Last reviewed on 10/4/2017
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