Imodium A-D: adverse event reports filed with FDA

3,463

reports as suspect product

0% of all reports · about 154 a year

68

reports, 12 months to June 2026

67 in the 12 months before

8.6%

marked serious by the reporter

91.7% across the class

0.8%

record death among outcomes, as reported

27 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 Imodium A-D reports recording the termmedian drug in opioid agonist

1. Drug ineffectivethe medicine did not work as expected24.7%856
2. Incorrect dose administeredthe wrong dose was given16.9%586
3. Expired product administeredthe product was used past its expiry date7.5%260
4. Off label useused for a purpose or in a way not on the label5.9%206
5. Product packaging issuea problem with the packaging5.7%197
6. Product use issuea problem in how the product was used4.5%157
7. Constipationconstipation4.3%149
8. Diarrhoealoose or frequent stools3.9%136
9. Inappropriate schedule of drug administrationthe medicine was taken at the wrong times3.8%131
10. Product use in unapproved indicationused for a purpose not on the label3.4%117
11. Overdosea dose above the recommended amount3.2%110
12. Wrong technique in product usage processthe product was used in the wrong way3.2%110
13. Intentional product misusedeliberate use not as intended3.1%106
14. Intentional product use issuedeliberate use not as intended2.6%89
15. Product use complaint2.4%82
16. Dysphagiadifficulty swallowing2.3%78
17. Wrong technique in drug usage processthe medicine was used in the wrong way2.1%74
18. Faeces discoloured2%68
19. Nauseafeeling sick1.9%67
20. Product package associated injury1.9%66
21. Incorrect product administration duration1.8%64
22. Abdominal pain upperupper stomach pain1.6%57
23. Therapeutic response unexpected1.5%52
24. Product packaging difficult to open1.5%51
25. Vomitingbeing sick1.5%51
26. Dysgeusiaaltered taste1.4%50
27. Product label issuea problem with the label1.3%44
28. Dizzinesslight-headedness or unsteadiness1.2%42
29. Product size issue1.2%42
30. Drug administration errora mistake in giving the medicine1.2%41

Top 30 of 256 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 42 drugs in the opioid agonist 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 965,051 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. 99.2% 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 3,463 reports.

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 opioid agonist 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 Imodium A-D as a suspect or interacting product; reports listing it only as a concomitant medication (4,851) 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.