Reported Reactions

Drugs

Product name as reported

Leuplin: adverse event reports filed with FDA

925 reports list it as a suspect or interacting product, 2005–2026.

925
reports as suspect product
0% of all reports · about 43 a year
42
reports, 12 months to June 2026
72 in the 12 months before
97.7%
marked serious by the reporter
57.4% across all reports
23.2%
record death among outcomes, as reported
215 reports · not verified by FDA

925 adverse event reports received by FDA list the product name "Leuplin" as reporters wrote it as a suspect or interacting product, from January 2005 to June 2026. A further 873 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 42 reports listed it, down 42% from 72 in 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 43 reports a year and 0% of the 20,646,523 reports in the database. How many people take it is not in the data, so a count is not a rate of occurrence.

The MedDRA terms listed most often are interstitial lung disease (6.3%), death (4.1%) and pneumonia (3.7%). A report can list several reactions, so shares add to more than 100%; 187 different terms appear across these reports. Interstitial lung disease is recorded in 6.3% of these reports, against 0.2% of all reports in the database.

97.7% of the reports are marked serious by the reporter; 23.2% record death among the outcomes and 38.9% record hospitalisation, as reported. 62.6% of the reports came from physicians, and the largest patient age group is 75 and over (28.3%). 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

0612Jul 2021: 10Aug 2021: 10Sep 2021: 4Oct 2021: 7Nov 2021: 5Dec 2021: 72022Jan 2022: 3Feb 2022: 1Mar 2022: 8Apr 2022: 11May 2022: 9Jun 2022: 10Jul 2022: 9Aug 2022: 8Sep 2022: 3Oct 2022: 8Nov 2022: 4Dec 2022: 122023Jan 2023: 4Feb 2023: 8Mar 2023: 4Apr 2023: 9May 2023: 7Jun 2023: 3Jul 2023: 4Aug 2023: 4Sep 2023: 9Oct 2023: 9Nov 2023: 11Dec 2023: 82024Jan 2024: 3Feb 2024: 9Mar 2024: 4Apr 2024: 4May 2024: 5Jun 2024: 9Jul 2024: 4Aug 2024: 3Sep 2024: 6Oct 2024: 6Nov 2024: 9Dec 2024: 52025Jan 2025: 7Feb 2025: 10Mar 2025: 8Apr 2025: 1May 2025: 8Jun 2025: 5Jul 2025: 8Aug 2025: 7Sep 2025: 2Oct 2025: 6Nov 2025: 3Dec 2025: 42026Jan 2026: 2Feb 2026: 0Mar 2026: 2Apr 2026: 3May 2026: 3Jun 2026: 2

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

0581162005: 820052006: 62009: 520092010: 82011: 220112012: 122013: 2620132014: 322015: 4920152016: 902017: 4120172018: 392019: 8520192020: 1162021: 9220212022: 862023: 8020232024: 672025: 6920252026: 12

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Leuplin reports recording the termall reports in the database

  1. Interstitial lung diseasescarring or inflammation of lung tissue6.3%58
  2. Deaththe patient died; cause not stated by this term4.1%38
  3. Pneumonialung infection3.7%34
  4. Diabetes mellitusdiabetes3.1%29
  5. Pneumonia aspirationlung infection from breathing in material2.9%27
  6. Falla fall2.6%24
  7. Marasmus2.2%20
  8. Condition aggravatedthe condition being treated got worse2.1%19
  9. Pyrexiafever1.9%18
  10. Cardiac failureheart failure1.8%17
  11. Hot flusha hot flush1.7%16
  12. Arthralgiajoint pain1.5%14
  13. Fracturea broken bone1.3%12
  14. Inappropriate schedule of product administrationthe product was taken at the wrong times1.3%12
  15. Astheniaweakness or lack of energy1%9
  16. Back painback pain1%9
  17. Hospitalisationadmission to hospital1%9
  18. Off label useused for a purpose or in a way not on the label1%9
  19. Drug ineffectivethe medicine did not work as expected0.9%8
  20. Dyspnoeashortness of breath0.9%8
  21. Injection site abscess0.9%8
  22. Malaisegeneral feeling of being unwell0.9%8
  23. Respiratory failurethe lungs could not supply enough oxygen0.9%8
  24. Anaemialow red blood cells0.8%7

Top 30 of 187 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 share of all reports in the database; 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

Death23.2%215
Life-threatening5.2%48
Hospitalisation (initial or prolonged)38.9%360
Disability2.3%21
Congenital anomaly0.1%1
Other serious69.4%642
Not serious2.3%21

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 20,646,523 reports. 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 20.1%1
2 to 113.2%30
12 to 170.8%7
18 to 447.7%71
45 to 6414.1%130
65 to 7417.1%158
75 and over28.3%262
Age not given28.8%266

Patient sex

Female24.1%223
Male72.2%668
Not given3.7%34

Who reported

Physician62.6%579
Pharmacist18.5%171
Other health professional10.5%97
Lawyer0%0
Consumer or non-health professional7.9%73
Not given0.5%5

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 0.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Prostate cancer38741.8%
Bulbospinal muscular atrophy congenital13814.9%
Uterine leiomyoma737.9%
Precocious puberty353.8%
Breast cancer192.1%
Endometriosis171.8%

The indication field is filled in by the reporter and is often blank; shares are of all 925 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Leuplin reports
Casodex657%
Bicalutamide576.2%
Magnesium oxide283%
Xtandi262.8%
Lansoprazole242.6%
Amlodipine192.1%
Prednisolone181.9%
Zytiga181.9%
Lyrica161.7%
Docetaxel121.3%

Other products listed in reports where Leuplin is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureLeuplinAll reports
Reports as suspect product92520,646,523
Share of that pool—0%
Reports, latest 12 months421,332,454
Marked serious97.7%57.4%
Death recorded among outcomes, per 1,000 reports23291
Hospitalisation recorded, per 1,000 reports389213
Consumer-filed share7.9%45.8%
Top term, share of reportsInterstitial lung disease 6.3%0.2%

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."

Questions about Leuplin reports

How many adverse event reports has FDA received for Leuplin?

925 reports list Leuplin as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 42 of them arrived in the latest 12 months. Another 873 list it only as a concomitant medication.

What reactions are recorded in Leuplin reports?

interstitial lung disease (6.3%), death (4.1%), pneumonia (3.7%), diabetes mellitus (3.1%) and pneumonia aspiration (2.9%). 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 Leuplin was responsible.

How serious are the reports?

97.7% are marked serious by the reporter. Among the outcomes recorded, 23.2% of reports include death and 38.9% 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?

physician (62.6%), pharmacist (18.5%) and other health professional (10.5%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Leuplin rising?

42 reports in the 12 months to June 2026, down 42% from 72 in 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 Leuplin 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 Leuplin?

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 Leuplin as a suspect or interacting product; reports listing it only as a concomitant medication (873) 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.