Reported Reactions

Drugs › Anticholinergic

Brand name · Dicyclomine hydrochloride

Dicyclomine: adverse event reports filed with FDA

721 reports list it as a suspect or interacting product, 2005–2026. Class: Anticholinergic. Also reported as Dicyclomine /00068601/, Dicyclomine 20mg Tablet.

721
reports as suspect product
0% of all reports · about 34 a year
73
reports, 12 months to June 2026
45 in the 12 months before
72.1%
marked serious by the reporter
39.6% across the class
24.8%
record death among outcomes, as reported
179 reports · not verified by FDA

Between April 2005 and June 2026, 721 adverse event reports received by FDA list the brand name Dicyclomine (dicyclomine hydrochloride) as a suspect or interacting product. Reports that mention it only as a concomitant medication (11,478) are left out of every figure here.

In the 12 months to June 2026, 73 reports listed it, up 62% from 45 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 34 reports a year and 0% of the 20,646,523 reports in the database, and 0.5% of the reports for the anticholinergic 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 completed suicide (12.2%), toxicity to various agents (9.8%) and drug ineffective (7.6%). A report can list several reactions, so shares add to more than 100%; 203 different terms appear across these reports. Completed suicide is recorded in 12.2% of these reports, with no counterpart in the median anticholinergic drug (0%).

72.1% of the reports are marked serious by the reporter (39.6% across the class); 24.8% record death among the outcomes and 32% record hospitalisation, as reported. 29% of the reports came from consumers, and the largest patient age group is 45 to 64 (26.1%). 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

01019Jul 2021: 6Aug 2021: 4Sep 2021: 4Oct 2021: 3Nov 2021: 8Dec 2021: 72022Jan 2022: 10Feb 2022: 4Mar 2022: 4Apr 2022: 2May 2022: 4Jun 2022: 1Jul 2022: 3Aug 2022: 6Sep 2022: 1Oct 2022: 4Nov 2022: 0Dec 2022: 22023Jan 2023: 5Feb 2023: 3Mar 2023: 2Apr 2023: 2May 2023: 7Jun 2023: 6Jul 2023: 3Aug 2023: 4Sep 2023: 3Oct 2023: 6Nov 2023: 12Dec 2023: 32024Jan 2024: 2Feb 2024: 1Mar 2024: 0Apr 2024: 1May 2024: 2Jun 2024: 2Jul 2024: 1Aug 2024: 0Sep 2024: 5Oct 2024: 2Nov 2024: 1Dec 2024: 22025Jan 2025: 6Feb 2025: 13Mar 2025: 5Apr 2025: 7May 2025: 0Jun 2025: 3Jul 2025: 3Aug 2025: 2Sep 2025: 4Oct 2025: 3Nov 2025: 4Dec 2025: 32026Jan 2026: 16Feb 2026: 7Mar 2026: 19Apr 2026: 5May 2026: 5Jun 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

036712005: 420052006: 62007: 72008: 520082009: 182010: 212011: 2020112012: 122013: 232014: 3620142015: 232016: 432017: 7120172018: 432019: 542020: 4120202021: 712022: 412023: 5620232024: 192025: 532026: 542026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Dicyclomine reports recording the termmedian drug in anticholinergic

  1. Completed suicidedeath by suicide12.2%88
  2. Toxicity to various agentspoisoning or toxic effect of one or more substances9.8%71
  3. Drug ineffectivethe medicine did not work as expected7.6%55
  4. Drug hypersensitivityan allergic-type reaction to a medicine6%43
  5. Diarrhoealoose or frequent stools4.6%33
  6. Nauseafeeling sick4.3%31
  7. Dizzinesslight-headedness or unsteadiness4%29
  8. Abdominal painstomach or belly pain3.9%28
  9. Off label useused for a purpose or in a way not on the label3.3%24
  10. Feeling abnormalfeeling odd or not right2.8%20
  11. Constipationconstipation2.6%19
  12. Drug abusemisuse of a medicine2.6%19
  13. Overdosea dose above the recommended amount2.6%19
  14. Vomitingbeing sick2.6%19
  15. Drug interactionan interaction between medicines2.5%18
  16. Fatiguetiredness2.5%18
  17. Painpain, site not specified2.1%15
  18. Deaththe patient died; cause not stated by this term1.9%14
  19. Neuroleptic malignant syndromea rare severe reaction with fever and rigidity1.9%14
  20. Rhabdomyolysismuscle breakdown1.9%14
  21. Intentional overdosea deliberate overdose1.8%13
  22. Mydriasis1.8%13
  23. Therapy non-responderthe treatment did not work1.8%13
  24. Product use in unapproved indicationused for a purpose not on the label1.7%12
  25. Somnolencedrowsiness1.7%12
  26. Cardiac arrestthe heart stopped1.5%11

Top 30 of 203 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 24 drugs in the anticholinergic 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

Death24.8%179
Life-threatening5%36
Hospitalisation (initial or prolonged)32%231
Disability2.4%17
Congenital anomaly0.3%2
Other serious39.5%285
Not serious27.9%201

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 159,807 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 20.3%2
2 to 110.3%2
12 to 172.8%20
18 to 4425.7%185
45 to 6426.1%188
65 to 749.7%70
75 and over7.9%57
Age not given27.3%197

Patient sex

Female62.4%450
Male29.3%211
Not given8.3%60

Who reported

Physician28.6%206
Pharmacist9%65
Other health professional26.4%190
Lawyer0.4%3
Consumer or non-health professional29%209
Not given6.7%48

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 94.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Irritable bowel syndrome608.3%
Abdominal pain91.2%
Cannabinoid hyperemesis syndrome71%
Diarrhoea71%
Dyspepsia71%
Suicide attempt60.8%

The indication field is filled in by the reporter and is often blank; shares are of all 721 reports.

In context

MeasureDicyclomineAnticholinergicAll reports
Reports as suspect product721159,80720,646,523
Share of that pool—0.5%0%
Reports, latest 12 months73—1,332,454
Marked serious72.1%39.6%57.4%
Death recorded among outcomes, per 1,000 reports2486391
Hospitalisation recorded, per 1,000 reports320202213
Consumer-filed share29%70.6%45.8%
Top term, share of reportsCompleted suicide 12.2%median 0%0.4%

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 anticholinergic class

DrugName typeReportsLatest 12 monthsMarked serious
Tiotropium bromidegeneric76,91761632.3%
Trelegy Elliptabrand26,7952,47235.1%
Anoro Elliptabrand12,55434626.3%
Ipratropium bromidegeneric8,31040080.2%
Spiriva Respimatbrand5,58124649.3%
Incruse Elliptabrand4,57512936.1%
Tudorza Pressairbrand3,858832.1%
Stiolto Respimatbrand2,89917225.2%
Atropinegeneric2,38616095.7%
Glycopyrrolategeneric2,22525892.3%
Transderm Scopbrand1,4981543%
Benztropinegeneric1,49216794.2%
Bevespi Aerospherebrand1,4676235.6%
Scopolaminegeneric1,26012568.6%
Atropine sulfategeneric1,1684784.7%

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 Dicyclomine reports

How many adverse event reports has FDA received for Dicyclomine?

721 reports list Dicyclomine as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 73 of them arrived in the latest 12 months. Another 11,478 list it only as a concomitant medication.

What reactions are recorded in Dicyclomine reports?

completed suicide (12.2%), toxicity to various agents (9.8%), drug ineffective (7.6%), drug hypersensitivity (6%) and diarrhoea (4.6%). 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 Dicyclomine was responsible.

How serious are the reports?

72.1% are marked serious by the reporter. Among the outcomes recorded, 24.8% of reports include death and 32% 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 (29%), physician (28.6%) and other health professional (26.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Dicyclomine rising?

73 reports in the 12 months to June 2026, up 62% from 45 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 Dicyclomine 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 Dicyclomine?

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 Dicyclomine as a suspect or interacting product; reports listing it only as a concomitant medication (11,478) 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.