Drug Safety Information for CHANTIX (Varenicline tartrate)

FDA Safety-related Labeling Changes for CHANTIX (VARENICLINE TARTRATE) Rx Drug: Safety Information Link

Adverse Drug Reactions for CHANTIX* (Varenicline tartrate)

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 CHANTIX
(reported in FDA Medwatch/FAERS Reports)

  Side Effect # of FDA Reports
1Nausea*13295
2Depression*8676
3Abnormal dreams*6919
4Anxiety5716
5Insomnia*5322
6Suicidal ideation4289
7Vomiting4140
8Headache3992
9Drug ineffective3807
10Feeling abnormal3611
11Malaise3520
12Dizziness2909
13Fatigue2873
14Aggression2826
15Nightmare2712
16Suicide attempt2270
17Irritability*2190
18Anger*2140
19Agitation2105
20Constipation*2103

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

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

Reason # of FDA Reports
1Smoking cessation therapy154816
2Ex-tobacco user7343
3Tobacco user3205
4Tobacco abuse2099
5Nicotine dependence2089
6Product used for unknown indication2035
7Chronic obstructive pulmonary disease60
8Dyspnoea52
9Emphysema41
10Drug withdrawal syndrome38

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


Types of Adverse Events for CHANTIX

Total Reports Filed with FDA: 229980


Number of FDA Adverse Event Reports by Patient Age for CHANTIX

Total Reports Filed with FDA: 229980*


* Reports for drugs with the same active ingredients have been aggregated in this analysis: Varenicline tartrate (Chantix, Champix)

Charts are based on 229980 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 CHANTIX 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.