Compare Risperdal vs. Zyprexa

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

Risperdal (risperidone)

Prescription only

Zyprexa (olanzapine)

Prescription only
Helps control your thoughts and mood.

Risperdal (risperidone) is an effective medication in treating schizophrenia, mania, and irritability associated with autism; however, amongst other newer medications in its class, it's more likely to cause side effects, such weight gain and hormone problems.

3.4/ 5 average rating with 45 reviewsforRisperdal
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
  • Risperdal (risperidone) is effective at relieving psychotic symptoms, manic episodes, irritability, and aggressive behavior. It also lowers relapse rates in people with schizophrenia and people with irritability associated with autism.
  • Less likely to cause heart problems compared to other antipsychotics.
  • Compared to other antipsychotics, Risperdal (risperidone) causes less sedation and weight gain.
  • A generic version available for pill, dissolving tablet, and liquid formulations.
  • 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
  • Mild to moderate risk of Extrapyramidal Symptoms (EPS) - movement disorders that cause stiffness, tremor, restlessness, and slow, repetitive, or involuntary movements.
  • People taking Risperdal (risperidone) might have weight gain and problems with cholesterol or blood sugar.
  • Compared to other antipsychotics, this medication has a higher risk of hormone problems that can cause nipples to leak and male breasts to grow abnormally large.
  • You might need routine blood tests to check how the medicine is affecting your body.
  • Risperdal (risperidone) takes 4 to 6 weeks for its full effects on thoughts and mood.
  • 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
  • Dissolving tablet
  • Liquid
  • Injection
  • Pill
  • Dissolving tablet
  • Injection
Price
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Reviews
45 reviews so far
42%
saidit'sworth it
47%
saiditworked well
49%
saidit'sa big hassle

Have you used Risperdal (risperidone)?

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
23possible side effects
  • Sedation
    63%
  • Increased appetite
    44%
  • Fatigue
    31%
  • Vomiting
    20%
  • Common cold
    19%
  • Constipation
    17%
  • Cough
    17%
  • Fever
    16%
  • Involuntary urination
    16%
  • Drooling
    12%
  • Headache
    12%
  • Hay fever
    12%
  • Dry mouth
    10%
  • Nasal congestion
    10%
  • Nausea
    8%
  • Upper respiratory tract infection
    8%
  • Weight gain
    8%
  • Tremor
    8%
  • Dizziness
    8%
  • Movement disorder
    8%
  • Rash
    8%
  • Increased saliva
    7%
  • Thirst
    7%
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
  • Increased risk of death
    • Elderly patients with dementia
  • Neuroleptic malignant syndrome
  • Heart problems
    • History of heart problems
    • Drug interactions
  • Shaking and restlessness
    • High doses of Risperdal (risperidone)
  • Higher blood sugar and cholesterol and weight gain
    • People with diabetes
    • People with high cholesterol
  • Driving impairment
    • Alcohol
    • Taking other medicines that make you less alert
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