Risperidone and Autism: A Comprehensive Guide

Managing autism spectrum disorder (ASD), especially when aggressive or self-injurious behaviors are present, can be a challenging task for caregivers and healthcare professionals alike. One medication that has found a significant role in managing irritability associated with ASD is risperidone. This article aims to provide a comprehensive understanding of risperidone’s use in autism, including its dosage, side effects, and more.

What is Risperidone?

Risperidone is an atypical antipsychotic medication primarily used to treat schizophrenia, bipolar disorder, and irritability associated with autism. It functions by altering the activity of certain natural substances in the brain.

Risperidone and Autism: An Overview

Risperidone is one of the few medications approved by the FDA for the treatment of symptoms of irritability in children and adolescents with autism. These symptoms include aggression, self-injurious behavior, and sudden mood changes. It’s worth noting that risperidone is not a cure for autism, but it can help manage some of the challenging behaviors associated with the condition.

Risperidone Dosage in Autism

The dosage of risperidone for individuals with autism varies based on factors such as the person’s age, weight, and overall health status. It’s crucial to follow the healthcare provider’s instructions when it comes to dosage.

For children aged five and older, the treatment usually starts at a low dose, often 0.25 mg per day. This dosage may gradually increase based on the individual’s response and tolerance to the medication. For adults with autism, the common dosage might be slightly higher, but it’s generally recommended to use the lowest effective dose.

Please note, the top dose or the maximum dose of risperidone for individuals with autism should only be determined by a healthcare provider.

Risperidone Formulations

Risperidone comes in various forms, including tablets and a solution (liquid). The liquid form of risperidone can be beneficial for individuals who have difficulty swallowing pills. For example, a prescription might read “risperidone autism liquid form 1.5 tsp” which translates to a specific milligram dosage of the liquid medication.

Risperidone Side Effects in Autism

Like all medications, risperidone can cause side effects. It’s important to monitor for these effects and report them to the healthcare provider promptly. Here are some potential side effects of risperidone in individuals with autism:

  1. Weight Gain: Weight gain is a common side effect of risperidone. Regular monitoring of weight and maintaining a healthy lifestyle can help manage this side effect.
  2. Drowsiness: Risperidone can cause drowsiness. This effect may lessen over time as the body adjusts to the medication.
  3. Increased Appetite: Individuals on risperidone might experience an increased appetite, which can contribute to weight gain.
  4. Hormonal Changes: Risperidone can cause an increase in the hormone prolactin, leading to symptoms like breast swelling or tenderness, irregular periods, or milk production.
  5. Movement Disorders: In rare cases, risperidone can cause movement disorders. Any involuntary or unusual movements should be reported to the healthcare provider immediately.

Risperidone vs. Other Medications in Autism

Risperidone is not the only medication used to manage symptoms of autism. Other antipsychotics like aripiprazole (Abilify) and olanzapine (Zyprexa) are also used.

Aripiprazole and risperidone are both approved by the FDA for the treatment of irritability in autism. The decision between these medications would depend on individual factors and potential side effects. For example, while risperidone is often associated with weight gain, aripiprazole might have a lower risk for this side effect.

Real-Life Experiences: Risperidone and Autism

Many parents and caregivers have shared their experiences with risperidone treatment in autism on various platforms, like Reddit and different autism forums.

While some share success stories of how risperidone has significantly reduced aggressive behaviors and improved the overall quality of life, others express concern over side effects. It’s important to remember that experiences with medication can vary significantly from person to person.

The Market for Risperidone in Autism

Given its effectiveness in managing irritability and aggressive behaviors associated with autism, risperidone holds a significant market share in the ASD medications market. However, the exact market value can fluctuate based on numerous factors, including new emerging therapies and generic drug competition.

Concluding Thoughts

Risperidone can be a useful tool in managing certain challenging behaviors associated with autism. However, like any medication, it should be used under the close supervision of a healthcare provider, considering its potential side effects.

Always remember that each individual with autism is unique, andwhat works for one person may not work for another. Medications are only a part of the overall treatment plan for autism, which also includes behavioral interventions, educational therapies, and family support.

Please note that this article should not replace professional medical advice. Always consult with a healthcare provider for appropriate diagnosis and treatment.

More about Risperidone and Autism

Autism in Adults and Risperidone

Although autism is typically diagnosed in childhood, it lasts into adulthood. Risperidone can be useful in managing irritability, aggression, and other behavioral disturbances in adults with autism. The dosage for adults is typically determined based on the individual’s weight and health status. It’s essential to monitor for side effects and maintain regular follow-up with the healthcare provider.

Understanding Stereotypy and Risperidone

Stereotypy refers to repetitive or ritualistic movements, postures, or utterances. These can include behaviors like hand-flapping, rocking, or repeating sounds or phrases. In individuals with autism, risperidone may help reduce the severity and frequency of these behaviors, particularly when they are disruptive or harmful.

Risperidone and Aggression in Autism

Risperidone is particularly useful for managing aggression in individuals with autism. Many caregivers have shared success stories of reduced aggression with the use of risperidone. However, it’s crucial to understand that medication alone is not a solution. Behavioral interventions and other therapeutic strategies are also important in managing aggression in autism.

Risperidone: A Liquid Option

For those who find it difficult to swallow tablets, risperidone is available in a liquid form. This can be particularly beneficial for children or individuals who have issues with medication compliance. The liquid form can be measured out in milliliters or teaspoons and is typically taken once or twice a day.

Risperidone and Autism: A Global Perspective

While this article is primarily from an American perspective, it’s worth noting that risperidone is used globally in the management of autism symptoms. In the UK and many other countries, risperidone is approved for use in managing irritability and aggression in children and adolescents with autism.

Risperidone: Part of a Comprehensive Treatment Plan

While risperidone can help manage some of the behavioral symptoms of autism, it’s important to remember that it’s not a cure for the condition. It should be used as part of a comprehensive treatment plan that includes behavioral therapy, educational interventions, and family support.

The decision to start a medication like risperidone should be made in close consultation with a healthcare provider, taking into account the potential benefits and risks. Regular follow-up appointments are essential to monitor for side effects and assess the effectiveness of the medication.

Finally, while online resources and anecdotal accounts can provide valuable insights, they should not replace professional medical advice. Always consult with a healthcare provider for any concerns or questions related to autism treatment.

Looking Toward the Future: Risperidone and Autism Research

Research into risperidone and autism continues, with scientists working to understand more about how this medication works and how to mitigate its side effects. Some studies are also looking into other medications for autism, providing hope for even more effective treatments in the future.

While risperidone is not a perfect solution, it has undoubtedly made a difference for many individuals with autism and their families. As our understanding of autism and its treatment continues to evolve, the ultimate goal remains the same: to improve the quality of life for individuals with autism and their loved ones.

In conclusion, risperidone is a medication that has proven effective for managing certain behavioral symptoms associated with autism. However, like any medication, it comes with potential side effects and should be used under the guidance of a healthcare provider. Remember that medication is just one tool in a comprehensive treatment plan for autism.


There are various forms of drugs available, such as tablets or liquids, and each may have a separate patient information leaflet (PIL) for different doses. It is important to refer to the PIL for the specific form and dose of the drug that you have been prescribed.

You can search for further information and PILs on websites such as: