Indications
Risperdal, also known as Risperidone, is a prescription medication commonly used to treat mental health disorders such as schizophrenia and bipolar disorder. It is an antipsychotic drug that works by changing the effects of certain chemicals in the brain.
Risperdal has been used for over two decades to help improve the symptoms of these disorders, making it a popular choice for psychiatrists and patients alike. It is used to effectively reduce psychotic symptoms such as hearing or seeing things that are not there and delusions. Risperdal can also be used to treat irritability and aggression in children who have autism spectrum disorder.
Risperdal is an atypical antipsychotic and second-generation antipsychotic medication which is used to treat a variety of mental health issues. It is often prescribed for schizophrenia, bipolar disorder, and irritability associated with autism spectrum disorder.
Uses and Dosage
The dosage of Risperdal should be determined according to the patient's age, medical condition, response to treatment, and potential interactions with other medications. It is essential to inform the doctor and pharmacist of all products being used, including prescription drugs, over-the-counter medications, and herbal remedies. To minimize the risk of side effects, the doctor may recommend beginning at a low dose and gradually increasing the amount taken. It is essential to follow the physician's instructions carefully.
| Initial Dose | Titration (Increments) |
Target Dose | Effective Dose | |
| Schizophrenia: adults (Schizophrenia) | 2 mg | 1 to 2 mg | 4 to 8 mg | 4 to 16 mg |
| Schizophrenia: adolescents (Bipolar Mania) | 0.5 mg | 0.5 to 1 mg | 3 mg | 1 to 6 mg |
| Bipolar mania: adults (Bipolar Mania) | 2 to 3 mg | 1 mg | 1 to 6 mg | 1 to 6 mg |
| Bipolar mania: children and adolescents (Bipolar Mania) | 0.5 mg | 0.5 to 1 mg | 1 to 2.5 mg | 1 to 6 mg |
| Irritability in autistic disorder (Irritability Associated with Autistic Disorder - Pediatrics (Children and Adolescents)) | 0.25 mg Can increase to 0.5 mg by Day 4: (body weight less than 20 kg)
0.5 mg Can increase to 1 mg by Day 4: (body weight greater than or equal to 20 kg) |
After Day 4, at intervals of > 2 weeks: 0.25 mg (body weight less than 20 kg)
0.5 mg (body weight greater than or equal to 20 kg) |
0.5 mg: (body weight less than 20 kg)
1 mg: (body weight greater than or equal to 20 kg) |
0.5 to 3 mg |
Side Effects
Common Side Effects of Risperdal
- Constipation
- Dizziness
- Drowsiness
- Dry mouth
- Runny or stuffy nose
- Upset stomach
- Weight gain
Serious Side Effects of Risperidone
- Allergic reactions
- Skin rash
- Itching
- Hives or swelling of the face
- Lips
- Tongue
- Throat
- High blood sugar (hyperglycemia)
- Increased thirst or amount of urine
- Unusual weakness
- Fatigue
- Blurry vision
- High prolactin level
- Unexpected breast tissue growth
- Discharge from the nipple
- Change in sex drive or performance
- Irregular menstrual cycle
- Infection—fever, chills, cough, or sore throat
- Pain or trouble swallowing
- Prolonged or painful erection
- Seizures
- Stroke
- Sudden numbness or weakness of the face, arm, or leg, trouble speaking,
- Confusion,
- Trouble walking
- Loss of balance or coordination
- Thoughts of suicide or self-harm, worsening mood, or feelings of depression
- Uncontrolled and repetitive body movements
Form and Strength
Risperdal and its generic alternative Risperidone are available in the following form and strengths:
Risperdal: Tablet
- 0.5 mg
- 1 mg
- 2 mg
- 3 mg
- 4 mg
Risperidone: Tablet
- 0.5 mg
- 1 mg
- 2 mg
Caution
- Risperidone may be passed into breast milk and may cause side effects in the infant. Women who are breast-feeding while using Risperdal should inform their doctor if the baby exhibits any symptoms such as drowsiness, tremors, or involuntary muscle movements.
- Patients taking Risperidone may experience impaired thinking or reactions and should take extra caution when operating a vehicle or engaging in activities which require alertness. It is also recommended to avoid or limit the consumption of alcohol, as it can increase the risk of certain side effects associated with Risperidone.
- It is advised to drink plenty of fluids, especially in hot weather or during physical activity, as it is easier to become dangerously overheated and dehydrated while taking this medication.
- If a dose of medication is missed, patients should take the medicine as soon as possible, however if it is close to the time of their next dose, they should skip the missed dose and not take two doses at once.
Frequently Asked Questions (FAQ)
What is the recommended dosage for Risperdal?
The recommended starting dose of Risperdal is 4 mg per day, taken once a day. Your doctor may adjust the dose as needed.
What should I do if I forget to take a dose of Risperdal?
If you miss a dose of Risperdal, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue your regular dosing schedule.
Is Risperdal safe for children?
Risperdal is approved for use in children ages 6 and over for certain behavioral disorders. The safety and efficacy of Risperdal has not been established in children under 6. Talk to your doctor about the risks and benefits of using Risperdal in children.
Resources
- https://www.webmd.com/drugs/2/drug-9846/risperdal-oral/details
- https://www.nami.org/About-Mental-Illness/Treatments/Mental-Health-Medications/Types-of-Medication/Risperidone-(Risperdal)
- https://www.rxlist.com/risperdal-drug.htm#description
- https://my.clevelandclinic.org/health/drugs/20391-risperidone-tablets
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