Compare Zofran vs. Zyprexa

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

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Zofran (Ondansetron)

Prescription only

Zyprexa (olanzapine)

Prescription only
Helps you feel less queasy.

Zofran (Ondansetron) works well to prevent nausea and vomiting, and it's available in different forms that you don't have to swallow.

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3.6/ 5 average rating with 366 reviewsforZofran
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.

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3.7/ 5 average rating with 68 reviewsforZyprexa
Upsides
  • Available in generic.
  • Available in forms that you don't have to swallow (like a tablet or film that dissolves in your mouth) if you're having trouble keeping anything down.
  • Starts working fast (in 30 minutes.
  • 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
  • Can cause headaches.
  • Can interact with antidepressants.
  • Can only be used to prevent nausea and vomiting, not to treat if it's already happening.
  • 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..
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Used for
Dosage forms
  • Pill
  • Dissolving tablet
  • Liquid
  • Sublingual film
  • Pill
  • Dissolving tablet
  • Injection
Price
Lowest price
$331.58
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Lowest price
$641.59
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Reviews
366 reviews so far
66%
saidit'sworth it
51%
saiditworked well
15%
saidit'sa big hassle

Have you used Zofran (Ondansetron)?

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
5possible side effects
  • Headache
    17%
  • Diarrhea
    16%
  • Constipation
    11%
  • Fever
    8%
  • Increased AST and ALT
    5%
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
  • Serotonin syndrome
  • Heart rhythm problems
    • Long QT syndrome
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
Learn more about Zofran (Ondansetron)
Learn more about Zyprexa (olanzapine)