Compare Haldol vs. Clozaril

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Haldol (haloperidol)

Prescription only

Clozaril (Clozapine)

Prescription only
Helps control your thoughts, calm agitation, and stabilize your mood.

Haldol (haloperidol) is less likely to cause weight gain and sedation, but more likely to cause movement disorders compared to other antipsychotics.

3.1/ 5 average rating with 50 reviewsforHaldol
Helps control your thoughts and actions.

Clozaril (Clozapine) treats schizophrenia when other drugs haven't worked, but you'll have to get blood work done regularly and might gain weight.

Upsides
  • Haldol (haloperidol) is available in a cheap, generic version.
  • A monthly extended-release injection allows for more convenient dosing than a daily pill.
  • Clinical studies show that Clozaril (Clozapine) is effective in treating schizophrenia when other medications have failed.
  • Has the lowest risk of causing movement problems when compared to other antipsychotic medicines.
  • Clozaril (Clozapine) is available as a normal tablet and as a mint-flavored tablet that dissolves on the tongue without water.
  • Available as a generic, which is cheaper.
Downsides
  • Haldol (haloperidol) is an older medicine and has a lot more problematic side effects compared to newer antipsychotics.
  • You might need routine blood tests and regular check-ups to make sure the medicine is working for you.
  • You need to get blood work done every time you can get a prescription filled for Clozaril (Clozapine).
  • You can only get Clozaril (Clozapine) at certain pharmacies that are registered to provide it.
  • If you don't get Clozaril (Clozapine) within 7 days of it being ready at the pharmacy, then you have to get blood work done again and get a new prescription from your doctor.
  • You need to limit the amount of alcohol you drink while on Clozaril (Clozapine).
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Used for
Dosage forms
  • Pill
  • Liquid
  • Injection
  • Pill
  • Dissolving tablet
  • Liquid
Price
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Reviews
50 reviews so far
38%
saidit'sworth it
42%
saiditworked well
34%
saidit'sa big hassle

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Side effects
The Haldol (haloperidol) FDA package insert doesn’t have numbers about how common side effects are.
33possible side effects
  • Drowsiness/Sedation
    39%
  • Salivation
    31%
  • Tachycardia
    25%
  • Dizziness/Vertigo
    19%
  • Constipation
    14%
  • Hypotension
    9%
  • Headache
    7%
  • Tremor
    6%
  • Syncope
    6%
  • Sweating
    6%
  • Dry Mouth
    6%
  • Nausea
    5%
  • Visual Disturbances
    5%
  • Fever
    5%
  • Disturbed Sleep/Nightmares
    4%
  • Restlessness
    4%
  • Hypokinesia/Akinesia
    4%
  • Agitation
    4%
  • Hypertension
    4%
  • Abdominal Discomfort/Heartburn
    4%
  • Weight Gain
    4%
  • Seizures (convulsions)
    3%
  • Rigidity
    3%
  • Akathisia
    3%
  • Confusion
    3%
  • Nausea/Vomiting
    3%
  • Vomiting
    3%
  • Leukopenia/Decreased WBC/Neutropenia
    3%
  • Fatigue
    2%
  • Insomnia
    2%
  • Diarrhea
    2%
  • Urinary Abnormalities
    2%
  • Rash
    2%
See more detailed side effects
Risks and risk factors
  • Increased risk of death
    • Elderly patients with dementia
  • Blood disorders
  • Neuroleptic malignant syndrome
  • Heart problems
    • History of heart problems
    • Drug interactions
  • Shaking and restlessness
  • Driving impairment
    • Drinking alcohol
    • Taking other medicines that make you less alert
See more detailed risks and warnings
  • Fewer white blood cells
  • Low blood pressure | Slow heartbeat | Fainting
    • Dehydration
    • Taking blood pressure medications
  • Seizures
    • Seizure disorder
    • Alcohol abuse
  • Heart problems
    • History of heart problems
  • Increased risk of death
    • Over 65 and having dementia
  • Weight gain
  • Increased blood sugar
    • Diabetes
  • Increased cholesterol
  • Neuroleptic malignant syndrome (NMS)
  • Tardive dyskinesia
  • Return of schizophrenic symptoms
    • Stopping Clozaril (Clozapine) suddenly
See more detailed risks and warnings