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Compare Risperdal vs. Zyprexa

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

Key takeaways

Risperidone (Risperdal) and olanzapine (Zyprexa) are both atypical antipsychotics used to treat schizophrenia and bipolar disorder, but they have some differences. Risperidone is also used to treat irritability associated with autism in children, while olanzapine can be combined with fluoxetine (Prozac) to treat bipolar depression and treatment-resistant depression. Risperidone is available in various forms, including tablets, dissolvable tablets, and oral solutions, whereas olanzapine is available as tablets and injections. Both medications can cause weight gain and sleepiness, but olanzapine is more likely to cause anticholinergic side effects like dry mouth and constipation. Risperidone has a higher risk of movement problems, such as muscle stiffness and tremors. Both medications should not be used in older adults with dementia-related psychosis due to an increased risk of death.

  • Risperidone (Risperdal)
    Olanzapine (Zyprexa)
  • Risperidone (Risperdal)
    Olanzapine (Zyprexa)

  • Summary of Risperdal vs. Zyprexa

    Summary for Atypical antipsychotic
    Prescription only

    Risperidone (Risperdal) is an atypical antipsychotic that's used to improve mood, thoughts, and behaviors in people with schizophrenia, bipolar disorder, and autism. It's taken by mouth, typically once or twice daily. Common side effects of risperidone (Risperdal) include sleepiness, movement problems, and weight gain. Risperidone (Risperdal) can interact with some medications, such as certain antidepressants or blood pressure medications. Taking these medications together can make certain side effects worse.

    Summary for Atypical antipsychotic
    Prescription only

    Olanzapine (Zyprexa) is an atypical antipsychotic used treat schizophrenia or bipolar disorder. It can also treat depression, in combination with fluoxetine (Prozac), when other treatments haven't worked well. This medication is thought to work by balancing the levels of certain chemicals in the brain. Olanzapine (Zyprexa) is taken by mouth, typically once daily, by adults and children. Olanzapine (Zyprexa) is also available as an injection that's usually given in a hospital or clinic setting. Some of the more common side effects of olanzapine (Zyprexa) include sleep problems, dizziness, and weight gain.

  • Indications of Risperdal vs. Zyprexa

    Indications for
    •Schizophrenia - people ages 13 years and older
    •Manic or mixed episodes associated with bipolar I disorder - people ages 10 years and older
    •Irritability associated with autism - children ages 5 to 17 years old
    Indications for
    •Schizophrenia in adults and children age 13 years and older
    •Bipolar I disorder in adults and children age 13 years and older

    When taken with fluoxetine (Prozac):

    •Bipolar depression in adults and children age 10 years and older
    •Depression that hasn't responded well to other treatments

  • Pros and Cons of Risperdal vs. Zyprexa

    Pros and Const for Atypical antipsychotic
    Pros
    •Taken by mouth
    •Available as a pill, dissolving tablet, and liquid
    •Can be used in both adults and children
    •Available as a lower-cost generic
    Cons
    •Higher risk of sexual problems, compared to other atypical antipsychotics
    •Can cause weight gain
    •Can cause changes to sleep or movement problems
    •Shouldn't be mixed with alcohol
    Pros and Const for Atypical antipsychotic
    Pros
    •Taken by mouth
    •Taken once daily
    •Might notice an improvement in your symptoms in as early as a week of starting olanzapine (Zyprexa)
    •Available as a lower-cost generic
    Cons
    •Can cause anticholinergic side effects, such as constipation and dry mouth
    •Can affect your sleep
    •More likely to cause weight gain, high blood cholesterol, and high blood sugar levels compared to some other atypical antipsychotics

  • Common Side Effects of Risperdal vs. Zyprexa

    Common Side Effects for

    Adults:

    •Muscle stiffness, muscle tightening, difficulty with movement (25%)
    •Extreme sleepiness (11%)
    •Restlessness, trouble remaining still (9%)
    •Tremor (6%)
    •Dizziness (6%)
    •Nausea (5%)
    •Repetitive movements, abnormal postures (5%)

    Children:

    •Extreme sleepiness (up to 56%)
    •Dizziness (up to 16%)
    •Nausea or vomiting (up to 16%)
    •Stomach pain (up to 16%)
    •Muscle stiffness, muscle tightening, difficulty with movement (up to 12%)
    •Heartburn (up to 10%)
    •Sore throat (up to 10%)
    Common Side Effects for
    •Sleepiness (29%)
    •Trouble sleeping (12%)
    •Accidental injury (12%)
    •Dizziness (11%)
    •Weakness (10%)
    •Dry mouth (9%)
    •Constipation (9%)
    •Upset stomach (7%)
    •Runny nose (7%)

  • Warnings of Risperdal vs. Zyprexa

    Common Side Effects for
    •Higher risk of death in older adults with dementia-related psychosis
    •Neuroleptic malignant syndrome
    •Difficulty controlling muscle movements (tardive dyskinesia)
    •Weight gain, higher blood sugar, and higher cholesterol levels
    •High prolactin levels
    •Changes in blood pressure and higher risk of falls
    •Risk of infection (from low white blood cell count)
    •Difficulty concentrating and extreme sleepiness
    •Seizures
    •Prolonged and painful erection
    •Caution use in people with phenylketonuria (PKU) - orally disintegrating tablets only
    Common Side Effects for
    •Higher risk of death in older people with dementia-related psychosis
    •Worsening depression, suicidal thoughts and behavior
    •Severe allergic skin reactions
    •Neuroleptic malignant syndrome
    •Weight gain, higher blood sugar, and higher cholesterol levels
    •Difficulty controlling body movements
    •Changes in blood pressure and higher risk of falls
    •Risk of infection (from low white blood cell count)
    •Seizures
    •High prolactin levels
    •Difficulty concentrating and extreme sleepiness
    •Anticholinergic side effects

  • Prices with our coupons for Risperdal vs. Zyprexa

    Learn more about Risperidone
    Learn more about Olanzapine

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