Haloperidol Injection (HALOPERIDOL DECANOATE - INTRAMUSCULAR INJECTION)

This medicine is used for the following purposes:

  • nausea and vomiting
  • psychosis
  • schizophrenia
  • Tourette's disorder

Brand Name(s): Haldol

Generic Name: Haloperidol Decanoate

Instructions

This medicine is given as an injection into a muscle.

This medicine should be given by a trained health care provider.

Tell your doctor if you have severe or persistent sweating, diarrhea or vomiting. These can increase your risk of a serious side effect.

It is important that you keep taking each dose of this medicine on time even if you are feeling well.

If you miss a dose, contact your doctor for instructions.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

Keep all appointments for medical exams and tests while on this medicine.

Cautions

During pregnancy, this medicine should be used only when clearly needed. Talk to your doctor about the risks and benefits.

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

Some patients taking this medicine have experienced serious side effects. Please speak with your doctor to understand the risks and benefits associated with this medicine.

This medicine may cause dizziness or fainting, especially after exercising or in hot weather. Be very careful when standing or sitting up quickly.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

Please check with your doctor before drinking alcohol while on this medicine.

Avoid becoming overheated during exercise or other activities. Try to stay cool in hot weather.

This medicine passes into breast milk. Ask your doctor before breastfeeding.

If you have a painful erection or an erection for more than 4 hours, seek medical care right away.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • agitated feeling or trouble sleeping
  • dizziness or drowsiness
  • dry mouth
  • headaches
  • pain, redness, swelling near injection
  • lightheadedness
  • nervousness
  • difficulty or discomfort urinating

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • decreased awareness or responsiveness
  • loss of balance
  • breast pain or swelling
  • chest pain
  • confusion
  • drooling
  • increased eye blinking or twitching
  • face appearing mask-like
  • fainting
  • high fever
  • fast, irregular, or slow heartbeat
  • irritability
  • signs of liver damage (such as yellowing of eye or skin, dark urine, or unusual tiredness)
  • menstruation changes (missed or fewer periods)
  • uncontrollable movement of face, tongue, arms or legs
  • muscle pain
  • tight or rigid muscles
  • muscle trembling or weakness
  • restlessness
  • seizures
  • shakiness
  • sweating
  • sweating at night
  • severe or persistent vomiting

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.

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