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Average User Rating:
Haloperidol, 3 / 5 (3 votes)

Haloperidol Side Effects

Haloperidol Package Pills Brand Serenace

Serious Adverse Side Effects

Haloperidol has some very serious adverse side effects associated with it, such as:
  • Cardiovascular side effects like prolonged QT intervals (a rare inborn heart condition), sudden cardiac arrest or death, and Torsades de pointes (a form of irregular heartbeat)
  • Gastrointestinal side effects like intestinal obstruction
  • Hematological side effects like agranulocytosis, a condition where there is a dangerously low amount of white blood cells
  • Neurological side effects like neuroleptic malignant syndrome (an adverse reaction to the medication), seizures, and twitching
  • Reproductive side effects like prolonged and painful erections in men

Common Adverse Side Effects

More common and less severe adverse side effects with Haloperidol include:
  • Cardiovascular side effects like low blood pressure
  • Gastrointestinal side effects like constipation and dry mouth
  • Neurological side effects like akathisia (Restless leg syndrome), twitching, extrapyramidal disease (inability to initiate movement or to remain motionless) and drowsiness
  • Ophthalmic side effects like blurred vision