Compare Seroquel vs. Zyprexa

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

Seroquel (quetiapine)

Prescription only

Zyprexa (olanzapine)

Prescription only
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.

3.7/ 5 average rating with 250 reviewsforSeroquel
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.

3.7/ 5 average rating with 68 reviewsforZyprexa
Upsides
  • 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.
  • 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.
Downsides
  • 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.
  • 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..
Used for
Dosage forms
  • Pill
  • Extended release
  • Pill
  • Dissolving tablet
  • Injection
Price
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Reviews
250 reviews so far
56%
saidit'sworth it
50%
saiditworked well
27%
saidit'sa big hassle

Have you used Seroquel (quetiapine)?

Leave a review
68 reviews so far
41%
saidit'sworth it
51%
saiditworked well
51%
saidit'sa big hassle

Have you used Zyprexa (olanzapine)?

Leave a review
Side effects
36possible 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%
  • Weight gain
    6%
  • Sore throat
    6%
  • Back pain
    5%
  • Stiffness/difficulty moving
    4%
  • Hay fever
    4%
  • Swelling in the limbs
    4%
  • Twitching
    4%
  • Indigestion
    4%
  • Depression
    3%
  • Lazy eye
    3%
  • Speech disorder
    3%
  • Altered hormone levels
    3%
  • Heaviness
    2%
  • Infection
    2%
  • Fever
    2%
  • High blood pressure
    2%
  • Increased heart rate
    2%
  • Increased appetite
    2%
  • Hypothyroidism
    2%
  • Incoordination
    2%
  • Abnormal thinking
    2%
  • Anxiety
    2%
  • Loss of control of movements
    2%
  • Sinus infection
    2%
  • Sweating
    2%
  • Urinary Tract Infection
    2%
See more detailed 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
Risks and risk factors
  • Higher risk of death
    • Elderly patients with dementia-related psychosis
  • Suicidal thoughts or behavior
    • Children, adolescents, and young adults (<24 years old)
  • Neuroleptic malignant syndrome
  • Heart problems
    • History of heart problems
    • Drug interactions
  • Extrapyramidal Symptoms (EPS)
  • Metabolic changes (increased blood sugar, high cholesterol and weight gain)
    • People with diabetes
    • People with high cholesterol
See more detailed risks and warnings
  • Increased risk of death
    • Elderly patients with dementia
  • Blood disorders
  • Neuroleptic malignant syndrome
  • Heart problems
    • History of heart problems
    • Drug interactions
  • Shaking and restlessness
  • Higher blood sugar, high cholesterol, and weight gain
    • People with diabetes
    • People with high cholesterol
See more detailed risks and warnings