Drug Safety Information for TIKOSYN (Dofetilide)

Adverse Drug Reactions for TIKOSYN* (Dofetilide)

These charts and graphs are based on reports received through the FDA Adverse Event Reporting System (FAERS) program (see below).

Top 20 Adverse Effects Associated with TIKOSYN
(reported in FDA Medwatch/FAERS Reports)

  Side Effect # of FDA Reports
1Atrial fibrillation524
2Drug ineffective366
3Dizziness*262
4Electrocardiogram qt prolonged232
5Dyspnoea*226
6Fatigue*202
7Headache183
8Drug interaction171
9Heart rate increased159
10Arrhythmia147
11Death145
12Nausea*125
13Malaise124
14Diarrhoea123
15Asthenia120
16Cardiac disorder119
17Chest pain*116
18Condition aggravated105
19Feeling abnormal98
20Pain97

* This side effect also appears in "Top 10 Side Effects of TIKOSYN " in the drug's Review Summary based on AskaPatient reviews.

Top 10 Reasons for Taking TIKOSYN
(associated with FDA Medwatch/FAERS Reports)

Reason # of FDA Reports
1Atrial fibrillation*6192
2Arrhythmia558
3Atrial flutter317
4Ill-defined disorder292
5Product used for unknown indication268
6Heart rate irregular266
7Cardiac disorder183
8Ventricular tachycardia129
9Heart rate increased125
10Cardiac failure congestive54

*Also a top-10 reason in AskaPatient Review Summary.


Types of Adverse Events for TIKOSYN

Total Reports Filed with FDA: 13468


Number of FDA Adverse Event Reports by Patient Age for TIKOSYN

Total Reports Filed with FDA: 13468*


* Reports for drugs with the same active ingredients have been aggregated in this analysis: Dofetilide (Tikosyn)

Charts are based on 13468 reports filed with the FDA between 2004 and June 2015.

Adverse Event Reports are submitted to the FDA by pharmaceutical companies (mandatory reporting is required by manufacturers, distributors, or importers), health care providers such as doctors (voluntary reporting), and by patients themselves (voluntary reporting). More Information on FDA MedWatch (FDA Safety Information and Adverse Event Reporting Program)Voluntary reporting takes place under the FDA's MedWatch program, where health care professionals and consumers submit reports to FDA when they find a problem with a drug, medical device, biologic, or other FDA-regulated product. An adverse event is any undesirable experience or extreme side effect associated with the use of a medical product. Adverse events include: death, life threatening event, hospitalization, disability or permanent damage, congenital anomaly or birth defect, medical product use requiring a surgical or other intervention, or other serious medical situation believed to be caused by the drug.

Click to go back to search results and TIKOSYN Reviews and Review Summary .

Historical Analytics of FDA Adverse Event Reports Provided by Druginformer.com. FDA Drug Safety Information, including safety-related labeling updates, required post-approval safety studies, risk evaluation management strategies (REMS), alerts, and recalls are compiled by AskaPatient.com from the U.S. Food and Drug Administration.