To minimize the risk of induced arrhythmia, patients initiated or re-initiated on TIKOSYN should be placed for a minimum of 3 days in a facility that can provide calculations of creatinine clearance, continuous electrocardiographic monitoring, and cardiac resuscitation. For detailed instructions regarding dose selection, see DOSAGE AND ADMINISTRATION .
Adult Dosing
General dosing
Therapy with TIKOSYN must be initiated (and, if necessary, re-initiated) in a setting that provides continuous electrocardiographic (ECG) monitoring and in the presence of personnel trained in the management of serious ventricular arrhythmias. Patients should continue to be monitored in this way for a minimum of three days. Additionally, patients should not be discharged within 12 hours of electrical or pharmacological conversion to normal sinus rhythm. • The dose of TIKOSYN must be individualized according to calculated creatinine clearance and QTc. (QT interval should be used if the heart rate is 60 mL/min 500 mcg twice daily 40 to 60 mL/min 250 mcg twice daily 20 to <40 mL/min 125 mcg twice daily <20 mL/min Tikosyn is contraindicated in these patients Step 4. Administer the adjusted TIKOSYN dose and begin continuous ECG monitoring. Step 5. At 2–3 hours after administering the first dose of Tikosyn, determine the QTc or QT (if heart rate is less than 60 beats per minute).
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