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...

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TIKOSYN® (dofetilide)
If you provide additional keywords, you may be able to browse through our database of Scientific Response Documents.
TIKOSYN® Quick Finder
INDICATIONS AND USAGE
Maintenance of Normal Sinus Rhythm (Delay in AF/AFl Recurrence)
TIKOSYN is indicated for the maintenance of normal sinus rhythm (delay in time...
DOSAGE AND ADMINISTRATION
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- 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...
CONTRAINDICATIONS
TIKOSYN is contraindicated in patients with congenital or acquired long QT syndromes. TIKOSYN should not be used in patients with a baseline QT interval or QTc >440 msec (500 msec in patients with...
WARNINGS
Ventricular Arrhythmia:
TIKOSYN (dofetilide) can cause serious ventricular arrhythmias, primarily Torsade de Pointes (TdP) type...
ADVERSE REACTIONS
The TIKOSYN clinical program involved approximately 8,600 patients in 130 clinical studies of normal volunteers and patients with supraventricular and ventricular arrhythmias. TIKOSYN was administered to 5,...
OVERDOSAGE
There is no known antidote to TIKOSYN; treatment of overdose should therefore be symptomatic and supportive. The most prominent manifestation of overdosage is likely to be excessive prolongation of the QT interval...
DESCRIPTION
TIKOSYN® (dofetilide) is an antiarrhythmic drug with Class III (cardiac action potential duration prolonging) properties. Its empirical formula is C19H...
CLINICAL PHARMACOLOGY
Mechanism of Action
Dofetilide shows Vaughan Williams Class III antiarrhythmic activity. The mechanism of action is blockade of the cardiac ion...
CLINICAL STUDIES
Chronic Atrial Fibrillation and/or Atrial Flutter
Two randomized, parallel, double-blind, placebo-controlled, dose-response trials evaluated the...
HOW SUPPLIED
TIKOSYN® 125 mcg (0.125 mg) capsules are supplied as No. 4 capsules with a light orange cap and white body, printed with TKN 125 PFIZER, and are available in:
TIKOSYN...
MEDICATION GUIDE
TIKOSYN® (Tee' ko sin)
(dofetilide) Capsules
Read the Medication Guide before you start taking TIKOSYN and each time...
Resources
To report an adverse event related to a Pfizer product and you are not part of a clinical trial* for this product, click the link below to submit your information: Pfizer Safety Reporting Site
*If you are involved in a clinical trial for either product, adverse events should be reported to your coordinating study site.
If you cannot use the above website to report an adverse event related to a Pfizer product, please call Pfizer Medical Information at (800) 438-1985.
(800)-332-1088.