Compare Zyprexa vs. Seroquel

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

Zyprexa (olanzapine)

Prescription only

Seroquel (quetiapine)

Prescription only
Helps control your thoughts and mood.

Zyprexa (olanzapine) is good for treating psychosis, mania, and agitation, but it's more likely to cause weight gain and sleepiness than other antipsychotics.

5.1/ 7 average rating with 68 reviewsforZyprexa
Helps control your thoughts and mood.

Seroquel (quetiapine) is a effective at treating schizophrenia, mania, and depression but it can cause weight gain and high blood glucose levels.

5.0/ 7 average rating with 250 reviewsforSeroquel
Upsides
  • Effective at relieving psychotic symptoms, manic episodes, and agitation in people with schizophrenia and bipolar disorder.
  • Less likely to cause heart problems than other antipsychotics.
  • Less likely to cause movement problems compared to older antipsychotics.
  • Seroquel (quetiapine) is effective at relieving psychotic symptoms and manic episodes.
  • Seroquel (quetiapine) has fewer side effects than most antipsychotic medications.
  • Seroquel (quetiapine) is less likely to cause heart problems compared to some other antipsychotics.
  • Seroquel (quetiapine) is also the least likely to cause Extrapyramidal Symptoms (EPS) – a movement disorder that causes stiffness, tremor, restlessness, and slow, repetitive, or involuntary movements.
Downsides
  • More likely to cause weight gain and increase cholesterol or blood sugar compared to other antipsychotics.
  • Might make you more sleepy than some antipsychotics.
  • Mild risk of Extrapyramidal Symptoms (EPS): Movement disorders that include stiffness, tremor, restlessness, and slow, repetitive movements you can't control.
  • You may need routine blood tests to check how the medicine is affecting your body..
  • Seroquel (quetiapine) has a moderate to high risk of weight gain, elevated cholesterol and/or blood sugar compared to other antipsychotics.
  • You might need routine blood tests to check how Seroquel (quetiapine) is affecting your body.
Used for
Dosage forms
  • Pill
  • Dissolving tablet
  • Injection
  • Pill
  • Extended release
Price
Lowest price near you
$12.05
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Lowest price near you
$8.4
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Reviews
68 
41%
think this treatment is worth it
51%
think this treatment works well
51%
think this treatment is a hassle

Have you used Zyprexa (olanzapine)?

Leave a review
250 
56%
think this treatment is worth it
50%
think this treatment works well
27%
think this treatment is a hassle

Have you used Seroquel (quetiapine)?

Leave a review
Side effects
9possible side effects
  • Drowsiness
    48%
  • Weight gain
    28%
  • Increased appetite
    28%
  • Headache
    17%
  • Fatigue
    14%
  • Dizziness
    7%
  • Dry Mouth
    7%
  • Abdominal pain
    6%
  • Pain in extremity
    5%
See more detailed side effects
10possible side effects
  • Drowsiness
    34%
  • Dry mouth
    19%
  • Headache
    17%
  • Weakness
    10%
  • Constipation
    10%
  • Dizziness
    9%
  • Tremor
    8%
  • Stomach pain
    7%
  • Low blood pressure
    7%
  • Agitation
    6%
See more detailed side effects
Risks and warnings
  • Increased risk of death

    Elderly patients with dementia

  • Heart problems

    History of heart problems

    ...and 1 more risk factors

  • Higher blood sugar, high cholesterol, and weight gain

    People with diabetes

    ...and 1 more risk factors

See more detailed risks and warnings
  • Higher risk of death

    Elderly patients with dementia-related psychosis

  • Suicidal thoughts or behavior

    Children, adolescents, and young adults (<24 years old)

  • Heart problems

    History of heart problems

    ...and 1 more risk factors

  • Metabolic changes (increased blood sugar, high cholesterol and weight gain)

    People with diabetes

    ...and 1 more risk factors

See more detailed risks and warnings