What is Haloperidol: Uses, Warnings & Interactions

Updated May 14, 2025  •  Published Dec 30, 2020

Haloperidol overview

BRAND NAMES:

Generic Names:

  • Haloperidol

Uses:

  • Treats mental and emotional disorders, behavior problems, and Tourette syndrome.

Therapeutic Classes:

  • Antipsychotic

Forms:

  • Tablet, Liquid

How it’s taken:

  • By mouth

What is Haloperidol used for?

Haloperidol is a medication used to treat schizophrenia, Tourette syndrome tics, mania in bipolar disorder, and other illnesses. Haloperidol belongs to a class of drugs called antipsychotics. Haloperidol is a generic medication also sold under the brand name Haldol. Haloperidol was discovered in 1958 and approved by the US FDA in 1967. In the treatment of some mental health disorders, haloperidol use is common.

What form(s) does Haloperidol come in

  • Tablet

  • Liquid

What are common Haloperidol doses?

  • Tablet 0.5MG

  • Tablet 1MG

  • Tablet 2MG

  • Tablet 5MG

  • Tablet 10MG

  • Tablet 20MG

Common Haloperidol prescriptions

  • Haloperidol
    100 tablets box

  • Haloperidol
    0.5mg tablet

  • Haloperidol
    10mg tablet

  • Haloperidol
    1mg tablet

  • Haloperidol
    20mg tablet

  • Haloperidol
    2mg tablet

  • Haloperidol
    5mg tablet

How to take Haloperidol

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • 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.

  • Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • 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.

What to do if you miss a dose of Haloperidol

  • 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.

  • Oral routeAsk your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Haloperidol contraindications

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to haloperidol.

Haloperidol warnings

  • 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 syndromeLung 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.

  • Problems with balance or walking.

  • Seeing or hearing things which are not there.

  • Seizures or tremors.

  • Severe muscle stiffness.

  • Troubled breathing.

  • Unusual bleeding, bruising, or weakness.

  • Yellowing of skin and eyes.

Haloperidol interactions

  • Some medicines can affect how haloperidol works. Tell your doctor if you are using any of the following:Lithium, rifampinBlood pressure medicineBlood thinner (including phenindione, warfarin)Medicine to treat heart rhythm problemsMedicine to treat Parkinson's diseaseMedicine 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.

  • Do not drink alcohol while you are using this medicine.

  • 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.

Haloperidol side effects

Serious Side Effects

  • Seizures or tremors.

  • Seizures or tremors

  • Sweating, confusion, uneven heartbeat, muscle stiffness

  • Twitching or muscle movements you cannot control, problems with balance or walking

  • Yellowing of skin and eyes.

  • Unusual bleeding, bruising, or weakness

  • Severe muscle stiffness.

  • Seeing or hearing things which are not there.

  • Troubled breathing.

  • 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

  • Unusual bleeding, bruising, or weakness.

Less Serious Side Effects

  • Decreased thirst or dry mouth.

  • Skin rash.

  • Loss of appetite.

  • Breast pain or swelling.

  • Trouble sleeping, restlessness.

  • Nausea, vomiting, diarrhea, or constipation.

  • Change in menstrual periods.