Reported Reactions

Drugs › Androgen

Brand name · Testosterone

Testopel: adverse event reports filed with FDA

1,442 reports list it as a suspect or interacting product, 2011–2026. Class: Androgen.

1,442
reports as suspect product
0% of all reports · about 98 a year
21
reports, 12 months to June 2026
20 in the 12 months before
70.8%
marked serious by the reporter
61.2% across the class
13.6%
record death among outcomes, as reported
196 reports · not verified by FDA

Between October 2011 and May 2026, 1,442 adverse event reports received by FDA list the brand name Testopel (testosterone) as a suspect or interacting product. Reports that mention it only as a concomitant medication (88) are left out of every figure here.

In the 12 months to June 2026, 21 reports listed it, close to the 20 of the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 98 reports a year and 0% of the 20,646,523 reports in the database, and 7.1% of the reports for the androgen class. How many people take it is not in the data, so a count is not a rate of occurrence.

The reactions recorded most often are deep vein thrombosis (15.7%), cerebrovascular accident (15.4%) and pulmonary embolism (14.7%). A report can list several reactions, so shares add to more than 100%; 269 different terms appear across these reports. Deep vein thrombosis is recorded in 15.7% of these reports, a larger share than in the median androgen drug (3.3%).

70.8% of the reports are marked serious by the reporter (61.2% across the class); 13.6% record death among the outcomes and 34% record hospitalisation, as reported. 44.9% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (24.1%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

01325Jul 2021: 0Aug 2021: 25Sep 2021: 3Oct 2021: 1Nov 2021: 0Dec 2021: 02022Jan 2022: 1Feb 2022: 1Mar 2022: 4Apr 2022: 1May 2022: 2Jun 2022: 3Jul 2022: 2Aug 2022: 16Sep 2022: 0Oct 2022: 0Nov 2022: 1Dec 2022: 22023Jan 2023: 1Feb 2023: 1Mar 2023: 1Apr 2023: 0May 2023: 0Jun 2023: 2Jul 2023: 1Aug 2023: 11Sep 2023: 2Oct 2023: 2Nov 2023: 1Dec 2023: 12024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 3May 2024: 1Jun 2024: 1Jul 2024: 0Aug 2024: 11Sep 2024: 3Oct 2024: 0Nov 2024: 1Dec 2024: 02025Jan 2025: 1Feb 2025: 0Mar 2025: 2Apr 2025: 1May 2025: 0Jun 2025: 1Jul 2025: 2Aug 2025: 9Sep 2025: 1Oct 2025: 2Nov 2025: 0Dec 2025: 12026Jan 2026: 0Feb 2026: 3Mar 2026: 1Apr 2026: 1May 2026: 1Jun 2026: 0

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

02494982011: 220112012: 72013: 1220132014: 582015: 49820152016: 3572017: 16120172018: 1002019: 5720192020: 452021: 4320212022: 332023: 2320232024: 202025: 2020252026: 6

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Testopel reports recording the termmedian drug in androgen

  1. Deep vein thrombosisa blood clot in a deep vein15.7%227
  2. Pulmonary embolisma blood clot in the lung14.7%212
  3. Myocardial infarctionheart attack13.3%192
  4. Painpain, site not specified12.1%174
  5. Thrombosis10.8%156
  6. Deaththe patient died; cause not stated by this term10.7%154
  7. Anxietyanxiety9.9%143
  8. Cardiac failure congestivecongestive heart failure9.2%133
  9. Ischaemia8.4%121
  10. Infarction8.3%120
  11. Quality of life decreasedreduced quality of life8.2%118
  12. Implant site painpain at an implant4.2%60
  13. Expulsion of medication3.6%52
  14. Drug ineffectivethe medicine did not work as expected3.5%51
  15. Off label useused for a purpose or in a way not on the label3.1%44
  16. Lacerationa cut2.6%37
  17. Emotional distressemotional distress2.4%35
  18. Implant site infection2.3%33
  19. Astheniaweakness or lack of energy1.8%26
  20. Product quality issuea problem with the product itself1.8%26
  21. Chest painchest pain1.7%25
  22. Anhedonia1.7%24
  23. Fatiguetiredness1.7%24

Top 30 of 269 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the median share across the 8 drugs in the androgen class; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death13.6%196
Life-threatening1.2%18
Hospitalisation (initial or prolonged)34%491
Disability19.3%278
Congenital anomaly0%0
Other serious34%491
Not serious29.2%421

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 20,367 reports in the class. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20%0
2 to 110%0
12 to 170%0
18 to 446.4%92
45 to 6424.1%348
65 to 7410%144
75 and over3%43
Age not given56.5%815

Patient sex

Female4%58
Male92.4%1,333
Not given3.5%51

Who reported

Physician13.3%192
Pharmacist2.6%38
Other health professional11.2%161
Lawyer44.9%648
Consumer or non-health professional24.9%359
Not given3.1%44

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 99.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Androgen replacement therapy43430.1%
Blood testosterone decreased22715.7%
Testicular failure966.7%
Hormone replacement therapy684.7%
Hypogonadism563.9%
Testicular disorder161.1%

The indication field is filled in by the reporter and is often blank; shares are of all 1,442 reports.

In context

MeasureTestopelAndrogenAll reports
Reports as suspect product1,44220,36720,646,523
Share of that pool—7.1%0%
Reports, latest 12 months21—1,332,454
Marked serious70.8%61.2%57.4%
Death recorded among outcomes, per 1,000 reports1365291
Hospitalisation recorded, per 1,000 reports340295213
Consumer-filed share24.9%34.6%45.8%
Top term, share of reportsDeep vein thrombosis 15.7%median 3.3%0.3%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Other drugs in the androgen class

DrugName typeReportsLatest 12 monthsMarked serious
Testosteronegeneric7,07277855.9%
Testosterone cypionategeneric3,09832239.5%
Testimbrand3,085486.9%
Depo-Testosteronebrand2,7871080.1%
Aveedbrand1,29010857.9%
Xyostedbrand9802402.7%
Danazolgeneric6134193.8%

Ordered by report count for navigation only. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic." A brand and its generic are separate rows because reporters name them separately.

Questions about Testopel reports

How many adverse event reports has FDA received for Testopel?

1,442 reports list Testopel as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 21 of them arrived in the latest 12 months. Another 88 list it only as a concomitant medication.

What reactions are recorded in Testopel reports?

deep vein thrombosis (15.7%), cerebrovascular accident (15.4%), pulmonary embolism (14.7%), myocardial infarction (13.3%) and pain (12.1%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Testopel was responsible.

How serious are the reports?

70.8% are marked serious by the reporter. Among the outcomes recorded, 13.6% of reports include death and 34% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

lawyer (44.9%), consumer or non-health professional (24.9%) and physician (13.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Testopel rising?

21 reports in the 12 months to June 2026, close to the 20 of the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Testopel was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Testopel?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Testopel as a suspect or interacting product; reports listing it only as a concomitant medication (88) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.