Drug Safety Information for DANAZOL (Danazol)

Adverse Drug Reactions for DANAZOL* (Danazol)

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 DANAZOL
(reported in FDA Medwatch/FAERS Reports)

  Side Effect # of FDA Reports
1Drug ineffective78
2Death65
3Anaemia52
4Thrombocytopenia52
5Asthenia48
6Hereditary angioedema48
7Fatigue46
8Platelet count decreased46
9Haemoglobin decreased45
10Drug interaction43
11Rhabdomyolysis42
12Renal failure acute40
13Therapeutic response decreased40
14Nausea*38
15Dyspnoea36
16Vomiting34
17Pneumonia29
18Pyrexia29
19Headache29
20Alanine aminotransferase increased28

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

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

Reason # of FDA Reports
1Idiopathic thrombocytopenic purpura472
2Product used for unknown indication361
3Hereditary angioedema*241
4Thrombocytopenia140
5Endometriosis*104
6Paroxysmal nocturnal haemoglobinuria82
7Aplastic anaemia66
8Anaemia65
9Angioedema48
10Autoimmune thrombocytopenia34

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


Types of Adverse Events for DANAZOL

Total Reports Filed with FDA: 4270


Number of FDA Adverse Event Reports by Patient Age for DANAZOL

Total Reports Filed with FDA: 4270*


* Reports for drugs with the same active ingredients have been aggregated in this analysis: Danazol (Azol, Danol, Ladogal, Danatrol, Cyclomen, Danazol, Danocrine)

Charts are based on 4270 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 DANAZOL 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.