Norco: adverse event reports filed with FDA

24,661

reports as suspect product

0.1% of all reports · about 1,109 a year

42

reports, 12 months to June 2026

54 in the 12 months before

93.1%

marked serious by the reporter

91.7% across the class

70.4%

record death among outcomes, as reported

17,359 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 Norco reports recording the termmedian drug in opioid agonist

1. Deaththe patient died; cause not stated by this term37.7%9,291
2. Toxicity to various agentspoisoning or toxic effect of one or more substances32.7%8,069
3. Overdosea dose above the recommended amount19%4,693
4. Drug dependencedependence on a medicine16.4%4,044
5. Drug abusemisuse of a medicine5.7%1,418
6. Painpain, site not specified5.7%1,412
7. Emotional distressemotional distress4.1%1,006
8. Drug withdrawal syndrome neonatal3.8%929
9. Drug withdrawal syndromesymptoms on stopping a medicine3.5%853
10. Accidental overdosean accidental overdose2.5%623
11. Foetal exposure during pregnancythe unborn baby was exposed to the medicine2.5%612
12. Drug ineffectivethe medicine did not work as expected2%503
13. Maternal exposure during pregnancythe mother took the medicine during pregnancy1.9%465
14. Anxietyanxiety1.8%436
15. Depressionlow mood1.5%377
16. Developmental delayslower development in a child1.3%325
17. Nauseafeeling sick1.3%321
18. Drug hypersensitivityan allergic-type reaction to a medicine1.2%303
19. Intentional product misusedeliberate use not as intended1.2%299
20. Drug diversion1.1%267
21. Constipationconstipation1%249
22. Dependence0.9%223
23. Tremorshaking0.9%212
24. Learning disability0.9%211
25. Headachehead pain0.8%208
26. Mental disorder0.8%204
27. Vomitingbeing sick0.8%194
28. Insomniadifficulty sleeping0.8%188
29. Fatiguetiredness0.7%177
30. Falla fall0.6%160

Top 30 of 1,029 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. 99.9% 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 24,661 reports.

Drugs most often listed in the same reports

Other products listed in reports where Norco 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 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 Norco as a suspect or interacting product; reports listing it only as a concomitant medication (36,782) 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.