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disopyramide - oral, Norpace (cont.)

PRECAUTIONS: Before taking disopyramide, 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: diabetes, glaucoma, kidney disease, liver problems, myasthenia gravis, urinary problems (such as due to enlarged prostate, urinary retention).This drug may rarely make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Before having surgery, tell your doctor or dentist that you are using this medication.Disopyramide 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 disopyramide, 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 disopyramide safely.This drug may cause low blood sugar (hypoglycemia), especially if you have diabetes, heart failure, decreased kidney/liver function, or nutrition problems. Tell your doctor immediately if you have symptoms of low blood sugar including sudden sweating, shaking, fast heartbeat, hunger, blurred vision, dizziness, or tingling hands/feet. If you have diabetes, your diabetes medication, exercise program, or diet may need to be adjusted.Older adults may be more sensitive to the side effects of this drug, especially urination problems.During pregnancy, this medication should be used only when clearly needed. Rarely, disopyramide may cause early labor during pregnancy. Discuss the risks and benefits with your doctor.This medication passes into breast milk, and the effect on a nursing infant is unknown. Consult your doctor before breast-feeding.



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