Risperidone is not for use in psychotic conditions related to dementia. Risperidone may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions.
You should not use this medication if you are allergic to risperidone.
Before taking risperidone, tell your doctor if you are allergic to any drugs, or if you have:
- liver disease;
- kidney disease;
- heart disease, high blood pressure, heart rhythm problems;
- a history of heart attack or stroke;
- a history of breast cancer;
- seizures or epilepsy;
- diabetes (risperidone may raise your blood sugar);
- a history of suicidal thoughts;
- Parkinson's disease; or
- trouble swallowing.
Risperidone may cause you to have high blood sugar (hyperglycemia). Talk to your doctor if you have any signs of hyperglycemia such as increased thirst or urination, excessive hunger, or weakness. If you are diabetic, check your blood sugar levels on a regular basis while you are taking risperidone.
The risperidone orally disintegrating tablet may contain phenylalanine. Talk to your doctor before using this form of risperidone if you have phenylketonuria (PKU).
FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.
It is not known whether risperidone passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Do not give this medication to a child without a doctor’s advice.
While you are taking risperidone, you may be more sensitive to temperature extremes such as very hot or cold conditions. Avoid getting too cold, or becoming overheated or dehydrated. Drink plenty of fluids, especially in hot weather and during exercise. It is easier to become dangerously overheated and dehydrated while you are taking risperidone.
Risperidone can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid drinking alcohol. It can increase some of the side effects of risperidone.
Seek emergency medical treatment if you think you have used too much of this medicine.
Overdose symptoms may include drowsiness, fast heart rate, feeling light-headed, fainting, and restless muscle movements in your eyes, tongue, jaw, or neck.
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Do not take extra medicine to make up the missed dose.
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using risperidone and call your doctor at once if you have any of these serious side effects:
- fever, stiff muscles, confusion, sweating, fast or uneven heartbeats;
- restless muscle movements in your eyes, tongue, jaw, or neck;
- tremor (uncontrolled shaking);
- trouble swallowing; or
- feeling light-headed, fainting.
Less serious side effects may include:
- mild restlessness, drowsiness, or tremor;
- sleepiness, dreaming more than usual;
- blurred vision;
- dizziness or headache;
- weight gain;
- problems with urination;
- nausea, dry mouth, constipation; or
- decreased sex drive, impotence, or difficulty having an orgasm.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
Before you take risperidone, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by risperidone.
Also tell your doctor if you are taking any of the following medicines:
- carbamazepine (Carbatrol, Tegretol);
- phenytoin (Dilantin);
- phenobarbital (Luminal, Solfoton);
- clozapine (Clozaril);
- fluoxetine (Prozac) or paroxetine (Paxil);
- rifampin (Rifadin, Rimactane, Rifater); or
- medicines used to treat Parkinson's Disease such as levodopa (Dopar, Larodopa, Sinemet, Atamet, others), bromocriptine (Parlodel, others), pergolide (Permax), pramipexole (Mirapex), or ropinirole (Requip).
This list is not complete and there may be other drugs that can interact with risperidone. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Risperdal, Risperdal Consta, Risperdal M-Tab, and risperidone
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Copyright 1996-2004 Cerner Multum, Inc. Version 2.05. Revision date 8/23/04