Risperidone | Side Effects, Dosage, Uses & More
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Generic Name:

risperidone, Oral tablet

All Brands

  • Risperdal
SECTION 1 of 5

Highlights for risperidone

Oral tablet
1

Risperidone is used to treat schizophrenia, bipolar I disorder, and irritability with autistic disorder.

2

This drug comes in the form of a tablet, solution, and disintegrating (dissolving) tablet you take by mouth.

3

Risperidone is available as a brand-name drug called Risperdal. It’s also available as a generic drug.

4

Some of the more common side effects of this drug include trouble moving, restlessness and an urge to move, muscle contractions that you cannot control, and tremors (uncontrollable rhythmic movement in one part of your body). They also include sleepiness, fatigue, dizziness, anxiety, blurred vision, stomach pain, drooling, dry mouth, increased appetite, weight gain, and rash.

5

In some cases, risperidone can cause serious side effects. These can include increased risk of death from infections and stroke in seniors with dementia, neuroleptic malignant syndrome, and movements in your face, tongue, or other body parts that you can’t control. These also include an increased risk of seizures or suicide (harming yourself).

IMPORTANT INFORMATION

FDA warning

This drug has a black box warning. This is the most serious warning from the Food and Drug Administration (FDA). A black box warning alerts doctors and patients about drug effects that may be dangerous.

Increased risk of death in seniors with dementia warning. This drug may increase the risk of death in seniors who have dementia (a brain disorder that causes memory loss).This drug isn’t approved to treat psychosis in seniors with dementia. Psychosis is a condition where a person loses contact with reality and may have hallucinations (seeing or hearing things that aren’t there) or delusions (false beliefs about what’s happening).

Neuroleptic Malignant Syndrome (NMS)

NMS is a rare but serious condition that can happen in people who take antipsychotic drugs, including risperidone. Symptoms may include high fever, heavy sweating, stiff muscles, confusion, kidney failure, and changes in your breathing, heart rhythm, and blood pressure. NMS can be fatal (cause death). This condition must be treated in a hospital.

Weight gain and high blood sugar or cholesterol

Risperidone can cause metabolic changes that might increase your risk of having a stroke or heart attack. You and your doctor should watch your blood sugar, symptoms of diabetes (weakness or increased urination, thirst, or hunger), weight, and cholesterol levels.

Tardive dyskinesia

This drug may cause tardive dyskinesia. This is a serious condition that causes you to have movements in your face, tongue, or other body parts that you can’t control. This condition may not go away even if you stop taking this drug.

Drug features

Risperidone is a prescription drug. It’s available as an oral tablet, oral solution, and orally disintegrating (dissolving) tablet.

Risperidone is available as a generic drug. Generic drugs usually cost less. In some cases, they may not be available in every strength or form as the brand-name version.

Risperidone may be used as part of a combination therapy. This means you may need to take it with other medications.

Why it's used

Risperidone is a drug to treat the symptoms of several psychiatric conditions.

More Details

How it works

Risperidone belongs to a class of drugs called atypical antipsychotics.

More Details

Why it's used

Risperidone is a drug to treat the symptoms of several psychiatric conditions. These include:

  • schizophrenia. This is a mental illness that causes changes in thinking or perception. People with this condition may have hallucinations (seeing or hearing things that aren’t there) or delusions (false beliefs about what’s happening). 
  • bipolar disorder in adults and children ages 10 years and older with acute manic or mixed episodes caused by bipolar I disorder. This drug may be given alone or with the drugs lithium or divalproex. People with bipolar disorder have intense mood episodes. These may include mania (an overly joyful or excited state), depression, or a mixture of both.
  • irritability associated with autism in adults and children ages 5 years and older. Autism affects how a person acts, interacts with others, learns, and communicates. Symptoms of irritability may include aggression towards others, harming yourself, temper tantrums, and mood swings.

How it works

Risperidone belongs to a class of drugs called atypical antipsychotics. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.

Risperidone works by affecting the amount of substances (neurotransmitters) that occur naturally in your brain. It’s thought that people with schizophrenia, bipolar disorder, and autism have an imbalance of certain neurotransmitters. This drug may improve this imbalance.

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SECTION 2 of 5

risperidone Side Effects

Oral tablet

More common side effects

The more common side effects of risperidone can include:

  • parkinsonism (trouble moving)

  • akathisia (restlessness and urge to move)

  • dystonia (muscle contractions that cause twisting and repetitive movements that you cannot control)

  • tremors (uncontrollable rhythmic movement in one part of your body)

  • sleepiness, fatigue, and dizziness

  • anxiety

  • blurred vision

  • stomach and upper abdominal pain or discomfort

  • drooling

  • dry mouth

  • increased appetite or weight gain

  • rash

  • stuffy nose, upper respiratory tract infections, and inflammation of your nose and throat

If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist.

Serious side effects

Call your doctor right away if you have serious side effects. Call 9-1-1 if your symptoms feel life-threatening or if you think you’re having a medical emergency. Serious side effects and their symptoms can include the following:

  • Death from infection and stroke in seniors with dementia

  • Neuroleptic malignant syndrome. Symptoms can include:

    • high fever (above 100.4°F)
    • heavy sweating
    • stiff muscles
    • confusion
    • changes in your breathing, heart rhythm, and blood pressure
    • kidney failure. Symptoms can include:
      • weight gain, especially in your legs
      • weakness or lethargy
      • sleepiness
      • sharp, stabbing chest pain
  • Tardive dyskinesia. Symptoms can include:

    • movements in your face, tongue, or other body parts that you can’t control.
  • Hyperglycemia (high blood sugar). Symptoms can include:

    • feeling very thirsty
    • needing to urinate more often than normal
    • feeling very hungry
    • weakness or tiredness
    • nausea
    • confusion
    • fruity smelling breath
  • High cholesterol and triglyceride levels

  • High blood prolactin levels. Symptoms can include:

    • breast enlargement
    • milky discharge from your nipple
    • erectile dysfunction (trouble getting or keeping an erection)
    • loss of your menstrual period
  • Orthostatic hypotension (a drop in blood pressure when you stand up from a sitting or lying position). Symptoms can include:

    • lightheadedness
    • fainting
    • dizziness 
  • Low white blood cell count. Symptoms can include:

    • fever
    • infection
  • Trouble thinking and impaired judgement and motor skills

  • Seizures

  • Trouble swallowing

  • Priapism (painful erection lasting more that four hours)

Pharmacist's Advice
Healthline Pharmacist Editorial Team

Risperidone may cause drowsiness

Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this information includes all possible side effects. This information is not a substitute for medical advice. Always discuss possible side effects with a healthcare provider who knows your medical history.
SECTION 3 of 5

risperidone May Interact with Other Medications

Oral tablet

Risperidone can interact with other medications, vitamins, or herbs you may be taking. An interaction is when a substance changes the way a drug works. This can be harmful or prevent the drug from working well. 

To help avoid interactions, your doctor should manage all of your medications carefully. Be sure to tell your doctor about all medications, vitamins, or herbs you’re taking. To find out how this drug might interact with something else you’re taking, talk to your doctor or pharmacist.

Alcohol interaction

The use of drinks that contain alcohol can increase your risk of drowsiness from risperidone. If you drink alcohol, talk to your doctor.

Medications that might interact with this drug

Interactions that increase your risk of side effects
  • Side effects from risperidone: Taking  risperidone with certain medications raises your risk of side effects from risperidone. This is because the amount of risperidone in your body is increased, or both medications may cause the same side effects. Examples of these drugs include:
    • Anxiety drugs, such as alprazolam, clonazepam, diazepam, chlordiazepoxide, and lorazepam. You may have more sedation and drowsiness.
    • Muscle relaxants, such as baclofen, cyclobenzaprine, methocarbamol, tizanidine, carisoprodol, and metaxalone. You may have more sedation and drowsiness.
    • Pain drugs, such as morphine, oxycodone, fentanyl, hydrocodone, tramadol, and codeine. You may have more sedation and drowsiness.
    • Antihistamines, such as hydroxyzine, diphenhydramine, chlorpheniramine, and brompheniramine. You may have more sedation and drowsiness.
    • Sedative/hypnotics, such as zolpidem, temazepam, zaleplon, and eszopiclone. You may have more sedation and drowsiness.
    • Fluoxetine. Taking these drugs together may cause parkinsonism (trouble moving),  sleepiness, anxiety, blurred vision, and other side effects of risperidone. Your doctor may decrease your risperidone dose.
    • Paroxetine. Taking these drugs together may cause parkinsonism (trouble moving),  sleepiness, anxiety, blurred vision, and other side effects of risperidone. Your doctor may decrease your risperidone dose.
    • Clozapine. Taking these drugs together may cause parkinsonism (trouble moving), sleepiness, anxiety, blurred vision, and other side effects of risperidone. Your doctor will monitor you closely for side effects and toxicity.
    • Blood pressure drugs, such as amlodipine, lisinopril, losartan, or metoprolol. You may have low blood pressure.
    • Parkinson’s disease drugs, such as levodopa, pramipexole, or ropinirole. You may have more Parkinson’s disease symptoms.

Interactions that can make your drugs less effective
  • When risperidone is less effective: When risperidone is used with certain drugs, it may not work as well to treat your condition. This is because the amount of risperidone in your body may be decreased. Examples of these drugs include:
    • Phenytoin. Your doctor may increase your risperidone dose.
    • Carbamazepine. Your doctor may increase your risperidone dose.
    • Rifampin. Your doctor may increase your risperidone dose.
    • Phenobarbital. Your doctor may increase your risperidone dose.

Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs interact differently in each person, we cannot guarantee that this information includes all possible interactions. This information is not a substitute for medical advice. Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking.

People with diabetes

This drug may increase your blood sugar levels. This may make your diabetes worse. Very high blood sugar may lead to coma (being unconscious for a long time) or death. If you have diabetes or risk factors of diabetes (such as being overweight or a family history of diabetes), your doctor should check your blood sugar before starting and during treatment with this drug. 

People with high cholesterol

This drug may increase your cholesterol and triglyceride levels. This may raise your risk for heart attack and stroke. High cholesterol may not cause any symptoms. Your doctor may check your cholesterol and triglyceride levels during treatment with this drug.

People with low blood pressure

This drug may further lower your blood pressure. This may make your condition worse. Your doctor should monitor your blood pressure while you take this drug.

People with a low white blood cell count

This drug may decrease your white blood cell count further. Your doctor should monitor your white blood cell count often during the first few months of treatment with this drug.

People with seizures

This drug may cause seizures. It may also affect seizure control in people with epilepsy. Your doctor should monitor you for seizures while you’re taking this drug.

People with hyperprolactinemia (high prolactin levels)

This drug may increase your prolactin levels. This can make your condition worse. Your doctor should monitor your blood prolactin levels before starting and during treatment with this drug.

People with heart problems

This drug may decrease your blood pressure. If you have heart problems, ask your doctor whether this drug is safe for you. These include a history of heart attack, angina (chest pain), coronary artery disease, heart failure, or heart rhythm problems. Risperidone may make these conditions worse.

People with kidney problems

If you have moderate to severe kidney disease, you may not be able to clear this drug from your body well. This may cause risperidone to build up in your body. This can lead to more side effects. Your doctor may reduce your dose if you have kidney disease.

People with liver problems

If you have liver problems, you may not be able to process this drug well. This may cause risperidone to build up in your body. This can lead to more side effects. Your doctor may reduce your dose if you have liver disease.

People with Parkinson’s disease or Lewy body dementia

People with Parkinson’s disease or Lewy body dementia can be more sensitive to the effects of this drug. You may experience more side effects from this drug. These include confusion, lethargy, frequent falls, trouble moving, restlessness and urge to move, uncontrollable muscle contractions, high fever, heavy sweating, stiff muscles, and changes in your breathing, heart rhythm, and blood pressure.

People with phenylketonuria (PKU)

Risperidone orally disintegrating tablet contains phenylalanine. If you have PKU, you shouldn’t take this form of the drug.

Pregnant women

Risperidone is a category C pregnancy drug. That means two things: 

  1. Research in animals has shown adverse effects to the fetus when the mother takes the drug.
  2. There haven’t been enough studies done in humans to be certain how the drug might affect the fetus.

Talk to your doctor if you’re pregnant or planning to become pregnant. This drug should only be used if the potential benefit justifies the potential risk to the fetus.

Newborn babies born to mothers taking this drug may have withdrawal symptoms. These may include restlessness, limpness (poor muscle tone), stiffness (too much muscle tone), tremors (uncontrollable rhythmic movement in one part of your body), sleepiness, and breathing and feeding problems. Some newborns recover within hours or days without treatment, but others may need to be hospitalized.

Women who are breast-feeding

Risperidone may pass into breast milk and may cause side effects in a child who is breast-fed.

Talk to your doctor if you breast-feed your child. You may need to decide whether to stop breast-feeding or stop taking this medication.

For seniors

The kidneys, heart, and liver of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, more of a drug stays in your body for a longer time. This raises your risk for side effects. 

Seniors may be more likely to have orthostatic hypotension (a drop in blood pressure when your stand up from a sitting or lying position) caused by this drug.

For children

Schizophrenia: This drug hasn’t been studied and shouldn’t be used in children younger than 13 years for the treatment of this condition. 

Acute manic or mixed bipolar I disorder episodes: This drug hasn’t been studied and shouldn’t be used in children younger than 10 years for the treatment of this condition. 

Irritability with autistic disorder: This drug hasn’t been studied and shouldn’t be used in children younger than 5 years for the treatment of this condition.

When to call the doctor

Call your doctor right away if you become pregnant while taking this drug. 

It may take 4 weeks for this drug to work. Call your doctor if your condition doesn’t improve or gets worse while you’re taking this drug. Symptoms can include: 

  • new or worse anxiety
  • agitation
  • panic attacks
  • trouble sleeping
  • new or worse irritability
  • acting aggressive or violent
  • acting on dangerous impulses
  • mania (extreme increase in activity and talking)
  • other unusual changes in behavior or mood

Allergies

Risperidone can cause a severe allergic reaction. Symptoms can include: 

  • trouble breathing
  • swelling of your throat or tongue 

If you have an allergic reaction, call your doctor or local poison control center right away. If your symptoms are severe, call 9-1-1 or go to the nearest emergency room.

Don’t take this drug again if you’ve ever had an allergic reaction to it. Taking it again could be fatal (cause death).

SECTION 4 of 5

How to Take risperidone (Dosage)

Oral tablet

All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on: 

  • your age
  • the condition being treated
  • how severe your condition is
  • other medical conditions you have
  • how you react to the first dose

What are you taking this medication for?

Schizophrenia

Generic: risperidone

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal M-TAB

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal

Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Adult dosage (ages 18–64 years)
  • Typical starting dose: 2 mg per day taken once or in two divided doses
  • Dose increases: Your doctor may slowly increase your dose once every 24 hours or longer. They may increase it by 1–2 mg per day to a dose of 4–16 mg per day. Your doctor will change your dose based on your response and how you tolerate the drug.
  • Maximum dose: 16 mg per day
Child dosage (ages 13–17 years)
  • Typical starting dose: 0.5 mg per day taken in the morning or evening
  • Dose increases: Your doctor may slowly increase your dose once every 24 hours or longer. They may increase it by 0.5–1 mg per day up to 6 mg per day. Your doctor will change your dose based on your response and how you tolerate the drug.
  • Maximum dose: 6 mg/day
Child dosage (ages 0–12 years)

This medication hasn’t been studied and shouldn’t be used in children younger than 13 years.

Senior dosage (ages 65 years and older)

Your doctor may give you a lower starting dose of 0.5 mg taken twice per day. They may increase your dose more slowly to reduce your risk of side effects.

Special considerations

Kidney disease: If you have severe kidney disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Liver disease: If you have severe liver disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Acute manic or mixed bipolar I disorder episodes

Generic: risperidone

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal M-TAB

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal

Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Adult dosage (ages 18–64 years)
  • Typical starting dose: 2–3 mg per day
  • Dose increases: Your doctor may slowly increase your dose once every 24 hours or longer. They may increase it by 1 mg per day to a dose of 1–6 mg per day. Your doctor will change your dose based on your response and how you tolerate the drug.
  • Maximum dose: 6 mg per day
Child dosage (ages 10–17 years)
  • Typical starting dose: 0.5 mg per day taken in the morning or evening
  • Dose increases: Your doctor may slowly increase your dose once every 24 hours or longer. They may increase it by 0.5–1 mg per day up to 6 mg per day. Your doctor will change your dose based on your response and how you tolerate the drug.
  • Maximum dose: 6 mg/day
Child dosage (ages 0–9 years)

This medication hasn’t been studied and shouldn’t be used in children younger than 10 years.

Senior dosage (ages 65 years and older)

Your doctor may give you a lower starting dose of 0.5 mg taken twice per day. They may increase your dose more slowly to reduce your risk of side effects.

Special considerations

Kidney disease: If you have severe kidney disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Liver disease: If you have severe liver disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Irritability with autistic disorder

Generic: risperidone

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal M-TAB

Form: Oral disintegrating tablet
Strengths: 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg

Brand: Risperdal

Form: Oral solution
Strengths: 1 mg/mL
Form: Oral tablet
Strengths: 0.25 mg, 0.5 mg, 1 mg, 2 mg, 3 mg, 4 mg
Adult dosage (ages 18–64 years)

This medication hasn’t been studied and shouldn’t be used in adults.

Child dosage (ages 5–17 years)
  • Typical starting dose:
    • For children weighing less than 44 lbs. (20 kg): Your doctor will start you at 0.25 mg taken once per day. Or your doctor may give you half of the total daily dose taken twice per day.
    • For children weighing 44 lbs. (20 kg) or more: Your doctor will start you at 0.5 mg  taken once per day. Or your doctor may give you half of the total daily dose taken twice per day.
  • Dose increases:
    • For children weighing less than 44 lbs. (20 kg): After a minimum of 4 days, your doctor may increase your dose to 0.5 mg per day. If you don’t respond to this drug after 14 days, your doctor may increase your dose every 2 weeks or more. They may increase it by  0.25 mg per day.
    • For children weighing 44 lbs. (20 kg) or more: After a minimum of 4 days, your doctor may increase your dose to 1 mg per day. If you don’t respond to this drug after 14 days, your doctor may increase your dose every 2 weeks or more. They may increase it by 0.5 mg per day.
  • Maximum dose: 3 mg per day
Child dosage (ages 0–4 years)

This medication hasn’t been studied and shouldn’t be used in children younger than 5 years.

Senior dosage (ages 65 years and older)

Your doctor may give you a lower starting dose of 0.5 mg taken twice per day. They may increase your dose more slowly to reduce your risk of side effects.

Special considerations

Kidney disease: If you have severe kidney disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Liver disease: If you have severe liver disease, your starting dose should be 0.5 mg taken twice per day. Your doctor may increase your dose by 0.5 mg or less, taken twice per day. If you’re taking a dose greater than 1.5 mg twice per day, your doctor may increase your dose once every week or longer.

Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages. This information is not a substitute for medical advice. Always to speak with your doctor or pharmacist about dosages that are right for you.
Pharmacist's Advice
Healthline Pharmacist Editorial Team

Risperidone comes with serious risks if you don’t take it as prescribed.

If you stop taking the drug suddenly or don’t take it at all

Your condition may get worse.

If you miss doses or don’t take the drug on schedule

Your medication may not work as well or may stop working completely. For this drug to work well, a certain amount needs to be in your body at all times.

If you take too much

You could have dangerous levels of the drug in your body. Symptoms of an overdose of this drug can include:

  • drowsiness
  • sleepiness
  • palpitations (fast heart beat)
  • dizziness
  • fainting
  • muscle spasms and contractions
  • stiff muscles, tremors (uncontrollable rhythmic movement in one part of your body), moving slower than normal
  • irregular, jerky body movements
  • seizures

If you think you’ve taken too much of this drug, call your doctor or local poison control center. If your symptoms are severe, call 9-1-1 or go to the nearest emergency room right away. 

What to do if you miss a dose

Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by taking two doses at once. This could result in dangerous side effects.

How to tell if the drug is working

Your behavior or mood should improve.

Risperidone is used for long-term treatment.

Important considerations for taking risperidone

Store this drug carefully

  • Store risperidone at room temperature. Keep it between 59°F and 77°F (15°C and 25°C). Keep it away from light.
  • Don’t store this medication in moist or damp areas, such as bathrooms.

A prescription for this medication is refillable

You should not need a new prescription for this medication to be refilled. Your doctor will write the number of refills authorized on your prescription.

Travel

When traveling with your medication:

  • Always carry your medication with you. When flying, never put it into a checked bag. Keep it in your carry-on bag.
  • Don’t worry about airport x-ray machines. They can’t hurt your medication.
  • You may need to show airport staff the pharmacy label for your medication. Always carry the original prescription-labeled box with you.
  • Don’t put this medication in your car’s glove compartment or leave it in the car. Be sure to avoid doing this when the weather is very hot or very cold.

Self-management

You can swallow the oral solution as it is or mix it with certain beverages. These include water, coffee, orange juice, and low-fat milk. Don’t mix the oral solution with soda or tea. They have substances in them that can decrease the absorption of medications. 

You shouldn’t remove the oral disintegrating tablets from their package until you’re ready to take them. Use dry hands to peel back the foil to get the tablet out. Don’t push the tablet through the foil. This could damage it. Place the tablet on your tongue right away. It will dissolve in your mouth within seconds. Swallow it with or without liquid.

Clinical monitoring

You and your doctor should monitor certain health issues. This can help make sure you stay safe while you take this drug. These issues include:

  • Kidney function. Your doctor may do blood tests to check how well your kidneys are working. If your kidneys aren’t working well, your doctor may lower your dose of this drug.
  • Mental health and behavioral problems. You and your doctor should watch for any unusual changes in your behavior and mood. This drug can cause new mental health and behavior problems, or make problems you already have worse.
  • Liver function. Your doctor may do blood tests to  check how well your liver is working. If your liver isn’t working well, your doctor may lower your dose of this drug.
  • Blood sugar. This drug may increase your blood sugar level. Your doctor may monitor your blood sugar while you’re taking this drug, especially if you have diabetes or are at risk for diabetes.
  • Cholesterol. This drug may increase your cholesterol and triglyceride levels. Your doctor may check these levels before starting and during treatment with this drug.  
  • Weight. This drug may cause you to gain weight. You and your doctor should check your weight during treatment.

Insurance

Some insurance companies require a prior authorization for this drug. This means your doctor will need to get approval from your insurance company before your insurance company will pay for the prescription.

Are there any alternatives?

There are other drugs available to treat your condition. Some may be better suited for you than others. Talk to your doctor about other drug options that may work for you.

What does the pill look like?

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SECTION 5 of 5

How Much Does risperidone Cost?

Oral tablet

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Content developed in collaboration with University of Illinois-Chicago, Drug Information Group

Medically reviewed by Creighton University, Center for Drug Information and Evidence-Based Practice on December 9, 2015

Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up-to-date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or other healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.
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