Reported Reactions

Drugs › Central nervous system stimulant

Generic name

Lisdexamfetamine dimesylate: adverse event reports filed with FDA

4,300 reports list it as a suspect or interacting product, 2007–2026. Class: Central nervous system stimulant.

4,300
reports as suspect product
0% of all reports · about 229 a year
713
reports, 12 months to June 2026
1,080 in the 12 months before
73.1%
marked serious by the reporter
45% across the class
1.3%
record death among outcomes, as reported
56 reports · not verified by FDA

Between October 2007 and June 2026, 4,300 adverse event reports received by FDA list lisdexamfetamine dimesylate, a generic name as a suspect or interacting product. Reports that mention it only as a concomitant medication (580) are left out of every figure here.

In the 12 months to June 2026, 713 reports listed it, down 34% from 1,080 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 229 reports a year and 0% of the 20,646,523 reports in the database, and 3.9% of the reports for the central nervous system stimulant 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 intentional overdose (24%), intentional self-injury (23.1%) and drug ineffective (17.5%). A report can list several reactions, so shares add to more than 100%; 740 different terms appear across these reports. Intentional overdose is recorded in 24% of these reports, a larger share than in the median central nervous system stimulant drug (0.9%).

73.1% of the reports are marked serious by the reporter (45% across the class); 1.3% record death among the outcomes and 29.3% record hospitalisation, as reported. 48.9% of the reports came from consumers, and the largest patient age group is 18 to 44 (25.4%). 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

0210419Jul 2021: 2Aug 2021: 4Sep 2021: 4Oct 2021: 25Nov 2021: 29Dec 2021: 302022Jan 2022: 10Feb 2022: 18Mar 2022: 45Apr 2022: 29May 2022: 58Jun 2022: 65Jul 2022: 53Aug 2022: 47Sep 2022: 66Oct 2022: 56Nov 2022: 30Dec 2022: 4192023Jan 2023: 73Feb 2023: 29Mar 2023: 21Apr 2023: 25May 2023: 28Jun 2023: 26Jul 2023: 30Aug 2023: 39Sep 2023: 29Oct 2023: 40Nov 2023: 78Dec 2023: 692024Jan 2024: 91Feb 2024: 101Mar 2024: 136Apr 2024: 340May 2024: 128Jun 2024: 94Jul 2024: 74Aug 2024: 61Sep 2024: 115Oct 2024: 58Nov 2024: 58Dec 2024: 562025Jan 2025: 46Feb 2025: 290Mar 2025: 132Apr 2025: 74May 2025: 55Jun 2025: 61Jul 2025: 52Aug 2025: 50Sep 2025: 55Oct 2025: 40Nov 2025: 44Dec 2025: 672026Jan 2026: 59Feb 2026: 52Mar 2026: 66Apr 2026: 77May 2026: 70Jun 2026: 81

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

06561,3122007: 220072008: 12009: 220092010: 92011: 820112012: 272013: 220132014: 52015: 820152016: 32017: 220172018: 82019: 1520192020: 282021: 11420212022: 8962023: 48720232024: 1,3122025: 96620252026: 405

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Lisdexamfetamine dimesylate reports recording the termmedian drug in central nervous system stimulant

  1. Intentional overdosea deliberate overdose24%1,034
  2. Drug ineffectivethe medicine did not work as expected17.5%751
  3. Product availability issuethe product was not available11.1%476
  4. Product substitution issuea problem after switching products7.7%332
  5. Fatiguetiredness7.5%324
  6. Headachehead pain7%302
  7. Anxietyanxiety5.9%252
  8. Depressionlow mood5.8%250
  9. Off label useused for a purpose or in a way not on the label5.2%224
  10. Product use issuea problem in how the product was used5.1%219
  11. Condition aggravatedthe condition being treated got worse4.9%211
  12. Palpitationsawareness of the heartbeat4.7%201
  13. Inappropriate schedule of product administrationthe product was taken at the wrong times4.4%189
  14. Somnolencedrowsiness4.3%187
  15. Disturbance in attentiondifficulty concentrating4.2%179
  16. Feeling abnormalfeeling odd or not right4%172
  17. Insomniadifficulty sleeping3.9%167
  18. Suicidal ideationthoughts of suicide3.7%160
  19. Confusional stateconfusion3.5%152
  20. Weight decreasedweight loss3.5%150
  21. Irritabilityirritability3.3%141
  22. Product use in unapproved indicationused for a purpose not on the label3%131
  23. Stressstress3%130
  24. Migrainemigraine2.9%125
  25. Nauseafeeling sick2.9%125
  26. Pyrexiafever2.9%124

Top 30 of 740 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 26 drugs in the central nervous system stimulant 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

Death1.3%56
Life-threatening2.5%108
Hospitalisation (initial or prolonged)29.3%1,261
Disability4.4%190
Congenital anomaly0.2%10
Other serious50%2,149
Not serious26.9%1,155

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 109,804 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 20.2%10
2 to 113.8%163
12 to 1717.8%764
18 to 4425.4%1,092
45 to 646.4%274
65 to 740.5%22
75 and over0%1
Age not given45.9%1,974

Patient sex

Female48.4%2,082
Male29.8%1,282
Not given21.8%936

Who reported

Physician12.9%556
Pharmacist2.2%96
Other health professional35.6%1,529
Lawyer0.1%6
Consumer or non-health professional48.9%2,104
Not given0.2%9

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 34% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Attention deficit hyperactivity disorder1,42433.1%
Binge eating200.5%
Adverse drug reaction140.3%
Disturbance in attention140.3%
Attention deficit/hyperactivity disorder120.3%
Depression120.3%

The indication field is filled in by the reporter and is often blank; shares are of all 4,300 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Lisdexamfetamine dimesylate reports
Vyvanse71816.7%
Sertraline2044.7%
Acetaminophen1954.5%
Melatonin1553.6%
Omeprazole1463.4%
Escitalopram1333.1%
Gabapentin1283%
Bisoprolol1152.7%
Quetiapine1142.7%
Metformin1092.5%

Other products listed in reports where Lisdexamfetamine dimesylate 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

MeasureLisdexamfetamine dimesylateCentral nervous system stimulantAll reports
Reports as suspect product4,300109,80420,646,523
Share of that pool—3.9%0%
Reports, latest 12 months713—1,332,454
Marked serious73.1%45%57.4%
Death recorded among outcomes, per 1,000 reports137991
Hospitalisation recorded, per 1,000 reports293129213
Consumer-filed share48.9%57.1%45.8%
Top term, share of reportsIntentional overdose 24%median 0.9%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 central nervous system stimulant class

DrugName typeReportsLatest 12 monthsMarked serious
Vyvansebrand17,54662725.7%
Daytranabrand13,703545.6%
Concertabrand10,83428165.2%
Adderallbrand10,07462238%
Methylphenidategeneric6,48373874.2%
Ritalinbrand6,14717575.2%
Methylphenidate hydrochloridegeneric5,91670357.7%
Excedrinbrand5,5304727.5%
Excedrin Migrainebrand4,6629712.1%
Amphetaminegeneric4,38848696.1%
Caffeinegeneric3,72134892.8%
Excedrin Extra Strengthbrand3,2425330.1%
Quillivantbrand2,0109211.1%
Focalinbrand1,8328039.1%
Amphetamine sulfategeneric1,4748993.7%

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 Lisdexamfetamine dimesylate reports

How many adverse event reports has FDA received for Lisdexamfetamine dimesylate?

4,300 reports list Lisdexamfetamine dimesylate as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 713 of them arrived in the latest 12 months. Another 580 list it only as a concomitant medication.

What reactions are recorded in Lisdexamfetamine dimesylate reports?

intentional overdose (24%), intentional self-injury (23.1%), drug ineffective (17.5%), product availability issue (11.1%) and inability to afford medication (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 Lisdexamfetamine dimesylate was responsible.

How serious are the reports?

73.1% are marked serious by the reporter. Among the outcomes recorded, 1.3% of reports include death and 29.3% 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?

consumer or non-health professional (48.9%), other health professional (35.6%) and physician (12.9%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Lisdexamfetamine dimesylate rising?

713 reports in the 12 months to June 2026, down 34% from 1,080 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 Lisdexamfetamine dimesylate 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 Lisdexamfetamine dimesylate?

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 Lisdexamfetamine dimesylate as a suspect or interacting product; reports listing it only as a concomitant medication (580) 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.