risperidone - oral, Risperdal (cont.)
PRECAUTIONS: Before taking risperidone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, kidney disease, low blood pressure, seizures, Parkinson's disease, memory problems (dementia), difficulty swallowing (especially in patients with dementia or Alzheimer's disease), strokes (cerebrovascular disease), dehydration, breast cancer, low white blood cell count.(See also Side Effects section.) Also tell your doctor or pharmacist if either you or a family member has a history of the following: diabetes, heart disease (e.g., heart attacks or ischemia, arrhythmias), high blood cholesterol/triglyceride levels, high blood pressure, obesity.Risperidone may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that require immediate medical attention. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may affect the heart rhythm (see also Drug Interactions section). Before using risperidone, tell your doctor or pharmacist if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using risperidone safely.This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages.This medication can reduce sweating. Heatstroke may occur if you become overheated during exercise or other physical activity or in hot weather. Drink plenty of liquids to avoid the risk of heatstroke.Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially the lowering of blood pressure.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Do not stop taking this medication unless directed by your doctor. Babies born to mothers who have used this drug during the last 3 months of pregnancy may infrequently develop symptoms including muscle stiffness or shakiness, drowsiness, feeding/breathing difficulties, or constant crying. If you notice any of these symptoms in your newborn anytime during their first month, tell the doctor right away.This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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