Haloperidol Side Effects by Likelihood and Severity

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • A Decrease In Thirst
  • A Skin Rash
  • Fast Heartbeat
  • Hallucinations
  • Tardive Dyskinesia, A Disorder Characterized By Involuntary Movements Of The Face, Mouth And Tongue

If experienced, these tend to have a Less Severe expression

  • A Change In Vision
  • Constipation
  • Drowsiness
  • Dry Mouth
  • Increased Sensitivity Of The Skin To The Sun
  • Nausea
  • The Inability To Have An Erection
  • Vomiting

RARE side effects


If experienced, these tend to have a Severe expression

  • A Disorder Of The Retina Of The Eye
  • A Feeling Of Restlessness With Inability To Sit Still
  • A Spasm Of The Larynx
  • A Yellowing Of The Eyes Or Skin From Buildup Of Bilirubin Called Jaundice
  • Accidental Falls
  • Bronchospasm
  • Clouding Of The Lens Of The Eye Called Cataracts
  • Extrapyramidal Disease, A Type Of Movement Disorder
  • Heat Stroke
  • High Blood Pressure
  • Liver Problems
  • Low Amount Of Sodium In The Blood
  • Low Levels Of A Type Of White Blood Cell Called Neutrophils
  • Low Levels Of White Blood Cells
  • Neuroleptic Malignant Syndrome, A Reaction Characterized By Fever, Muscle Rigidity And Confusion
  • Orthostatic Hypotension, A Form Of Low Blood Pressure
  • Priapism, A Prolonged Erection Of The Penis
  • Prolonged QT Interval On EKG
  • Seizures
  • Torsades De Pointes, A Type Of Abnormal Heart Rhythm
  • Ventricular Arrhythmias, A Type Of Abnormal Heart Rhythm
  • Very Low Levels Of Granulocytes, A Type Of White Blood Cell

If experienced, these tend to have a Less Severe expression

  • A Skin Rash Resembling Acne
  • A Type Of Bumpy Skin Rash Called A Maculopapular Rash
  • Abnormal Muscle Movements
  • Agitation
  • An Extreme Sense Of Wellbeing Called Euphoria
  • An Inability To Completely Empty The Bladder
  • Breast Pain
  • Breastmilk Production Not Associated With Childbirth Or Nursing
  • Confusion
  • Decreased Appetite
  • Depression
  • Diarrhea
  • Difficulty Sleeping
  • Enlarged Breasts
  • Excessive Sweating
  • Fever
  • Hair Loss
  • Head Pain
  • Indigestion
  • Irregular Periods
  • Low Blood Pressure
  • Low Energy And Weakness
  • Nervousness
  • Sensation Of Spinning Or Whirling

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: 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 a 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.