Revlimid: adverse event reports filed with FDA

354,649

reports as suspect product

1.7% of all reports · about 16,959 a year

8,112

reports, 12 months to June 2026

14,445 in the 12 months before

62.3%

marked serious by the reporter

63.4% across the class

12.6%

record death among outcomes, as reported

44,741 reports · not verified by FDA

Reports by month, five years

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

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Revlimid reports recording the termmedian drug in thalidomide analog

1. Diarrhoealoose or frequent stools7.7%27,210
2. Fatiguetiredness6.6%23,404
3. Deaththe patient died; cause not stated by this term6.5%23,204
4. Rashskin rash4.5%15,874
5. Pneumonialung infection4.4%15,682
6. Plasma cell myeloma3.8%13,549
7. Off label useused for a purpose or in a way not on the label3.4%12,167
8. White blood cell count decreasedlow white cell count3%10,653
9. Neuropathy peripheralnerve damage in hands or feet2.9%10,145
10. Constipationconstipation2.7%9,597
11. Nauseafeeling sick2.6%9,048
12. Astheniaweakness or lack of energy2.4%8,647
13. Platelet count decreasedlow platelet count2.4%8,419
14. Thrombosis2.1%7,386
15. Product dose omission issuea dose was missed2%7,145
16. Muscle spasmsmuscle cramps2%7,069
17. Full blood count decreased2%6,992
18. Neutropenialow neutrophils, a type of white blood cell1.9%6,670
19. Pruritusitching1.9%6,571
20. Falla fall1.8%6,396
21. Dizzinesslight-headedness or unsteadiness1.8%6,362
22. Dyspnoeashortness of breath1.8%6,277
23. Peripheral swellingswelling of the arms or legs1.7%5,869
24. Anaemialow red blood cells1.6%5,790
25. Pyrexiafever1.5%5,492
26. Decreased appetitereduced appetite1.4%4,993
27. Painpain, site not specified1.4%4,951
28. Covid-19COVID-19 infection1.3%4,725
29. Haemoglobin decreasedlow haemoglobin1.3%4,694
30. Thrombocytopenialow platelets1.3%4,533

Top 30 of 3,699 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 4 drugs in the thalidomide analog 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

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 516,063 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

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 89.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

The indication field is filled in by the reporter and is often blank; shares are of all 354,649 reports.

Drugs most often listed in the same reports

Other products listed in reports where Revlimid 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

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 thalidomide analog class

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.

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 Revlimid as a suspect or interacting product; reports listing it only as a concomitant medication (6,087) 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.