Reported Reactions

Drugs › beta-Adrenergic blocker

Generic name

Labetalol hydrochloride: adverse event reports filed with FDA

791 reports list it as a suspect or interacting product, 2004–2026. Class: beta-Adrenergic blocker. Also reported as Labetalol Hydrochloride Tablets Usp, Labetalol Hydrochloride Injection Usp.

791
reports as suspect product
0% of all reports · about 35 a year
88
reports, 12 months to June 2026
95 in the 12 months before
80.7%
marked serious by the reporter
78.7% across the class
11.8%
record death among outcomes, as reported
93 reports · not verified by FDA

791 adverse event reports received by FDA list labetalol hydrochloride, a generic name as a suspect or interacting product, from February 2004 to June 2026. A further 1,184 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 88 reports listed it, close to the 95 of 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 35 reports a year and 0% of the 20,646,523 reports in the database, and 0.5% of the reports for the beta-Adrenergic blocker class. How many people take it is not in the data, so a count is not a rate of occurrence.

Reporters most often recorded maternal exposure during pregnancy (17.7%), drug ineffective (15.4%) and foetal exposure during pregnancy (15.3%). A report can list several reactions, so shares add to more than 100%; 183 different terms appear across these reports. Maternal exposure during pregnancy is recorded in 17.7% of these reports, a larger share than in the median beta-Adrenergic blocker drug (0.5%).

80.7% of the reports are marked serious by the reporter (78.7% across the class); 11.8% record death among the outcomes and 27.8% record hospitalisation, as reported. 45.4% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (29.1%). 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

01224Jul 2021: 0Aug 2021: 5Sep 2021: 0Oct 2021: 3Nov 2021: 4Dec 2021: 62022Jan 2022: 0Feb 2022: 5Mar 2022: 7Apr 2022: 1May 2022: 9Jun 2022: 6Jul 2022: 2Aug 2022: 3Sep 2022: 2Oct 2022: 3Nov 2022: 10Dec 2022: 162023Jan 2023: 8Feb 2023: 16Mar 2023: 2Apr 2023: 10May 2023: 7Jun 2023: 13Jul 2023: 11Aug 2023: 4Sep 2023: 3Oct 2023: 8Nov 2023: 5Dec 2023: 142024Jan 2024: 9Feb 2024: 8Mar 2024: 10Apr 2024: 14May 2024: 15Jun 2024: 2Jul 2024: 24Aug 2024: 15Sep 2024: 3Oct 2024: 9Nov 2024: 2Dec 2024: 42025Jan 2025: 12Feb 2025: 5Mar 2025: 1Apr 2025: 8May 2025: 4Jun 2025: 8Jul 2025: 8Aug 2025: 3Sep 2025: 5Oct 2025: 3Nov 2025: 10Dec 2025: 112026Jan 2026: 5Feb 2026: 7Mar 2026: 9Apr 2026: 6May 2026: 14Jun 2026: 7

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

0581152004: 220042005: 32006: 42007: 420072008: 122009: 112010: 320102011: 22012: 62013: 320132014: 92015: 172016: 2520162017: 342018: 642019: 6520192020: 612021: 602022: 6420222023: 1012024: 1152025: 7820252026: 48

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Labetalol hydrochloride reports recording the termmedian drug in beta-adrenergic blocker

  1. Maternal exposure during pregnancythe mother took the medicine during pregnancy17.7%140
  2. Drug ineffectivethe medicine did not work as expected15.4%122
  3. Foetal exposure during pregnancythe unborn baby was exposed to the medicine15.3%121
  4. Premature babya baby born early14.4%114
  5. Exposure during pregnancythe medicine was taken during pregnancy9.4%74
  6. Hypertensionhigh blood pressure6.3%50
  7. Completed suicidedeath by suicide4.7%37
  8. Off label useused for a purpose or in a way not on the label4.6%36
  9. Product use issuea problem in how the product was used4.6%36
  10. Foetal disorder3.9%31
  11. Drug hypersensitivityan allergic-type reaction to a medicine3.3%26
  12. Medication errora mistake in prescribing, dispensing or taking a medicine3.3%26
  13. Oedema peripheralswelling of the legs, ankles or hands3.2%25
  14. Abdominal discomfortstomach discomfort3%24
  15. Amnesiamemory loss2.9%23
  16. Diabetes mellitus inadequate controldiabetes not well controlled2.9%23
  17. Nauseafeeling sick2.9%23
  18. Neutropenia neonatal2.9%23
  19. Cognitive disorderproblems with thinking or memory2.8%22
  20. Contusiona bruise2.8%22
  21. Depressed moodlow mood2.8%22
  22. Mobility decreasedreduced ability to move about2.8%22
  23. Diarrhoealoose or frequent stools2.5%20
  24. Peripheral swellingswelling of the arms or legs2.5%20
  25. Product use in unapproved indicationused for a purpose not on the label2.4%19
  26. Treatment noncompliancethe treatment was not taken as directed2.4%19

Top 30 of 183 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 22 drugs in the beta-adrenergic blocker 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

Death11.8%93
Life-threatening5.7%45
Hospitalisation (initial or prolonged)27.8%220
Disability0.1%1
Congenital anomaly1.4%11
Other serious63%498
Not serious19.3%153

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 148,208 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 23.8%30
2 to 110.8%6
12 to 171.4%11
18 to 4429.1%230
45 to 6410.6%84
65 to 744.7%37
75 and over9.2%73
Age not given40.5%320

Patient sex

Female56.5%447
Male24%190
Not given19.5%154

Who reported

Physician25.3%200
Pharmacist8.6%68
Other health professional45.4%359
Lawyer0.1%1
Consumer or non-health professional19.1%151
Not given1.5%12

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 54.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hypertension25031.6%
Pre-eclampsia232.9%
Foetal exposure during pregnancy162%
Gestational hypertension141.8%
Blood pressure abnormal121.5%
Blood pressure management91.1%

The indication field is filled in by the reporter and is often blank; shares are of all 791 reports.

In context

MeasureLabetalol hydrochloridebeta-Adrenergic blockerAll reports
Reports as suspect product791148,20820,646,523
Share of that pool—0.5%0%
Reports, latest 12 months88—1,332,454
Marked serious80.7%78.7%57.4%
Death recorded among outcomes, per 1,000 reports11813191
Hospitalisation recorded, per 1,000 reports278387213
Consumer-filed share19.1%26.8%45.8%
Top term, share of reportsMaternal exposure during pregnancy 17.7%median 0.5%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 beta-adrenergic blocker class

DrugName typeReportsLatest 12 monthsMarked serious
Metoprololgeneric27,4101,52088.2%
Bisoprololbrand22,8811,45499.1%
Atenololgeneric17,02244484.9%
Propranololgeneric13,7331,17787.1%
Metoprolol succinategeneric10,41666465.4%
Metoprolol tartrategeneric9,10355772.4%
Bisoprolol fumarategeneric8,29254698.2%
Propranolol hydrochloridegeneric6,10248471.9%
Timololgeneric4,8189720.7%
Hemangeolbrand4,3834415.4%
Nebivololgeneric4,21138693.9%
Toprol Xlbrand3,3413544.5%
Labetalolgeneric2,96019288.7%
Bystolicbrand2,8412131.1%
Timolol maleategeneric2,74312029.9%

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 Labetalol hydrochloride reports

How many adverse event reports has FDA received for Labetalol hydrochloride?

791 reports list Labetalol hydrochloride as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 88 of them arrived in the latest 12 months. Another 1,184 list it only as a concomitant medication.

What reactions are recorded in Labetalol hydrochloride reports?

maternal exposure during pregnancy (17.7%), drug ineffective (15.4%), foetal exposure during pregnancy (15.3%), premature baby (14.4%) and exposure during pregnancy (9.4%). 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 Labetalol hydrochloride was responsible.

How serious are the reports?

80.7% are marked serious by the reporter. Among the outcomes recorded, 11.8% of reports include death and 27.8% 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?

other health professional (45.4%), physician (25.3%) and consumer or non-health professional (19.1%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Labetalol hydrochloride rising?

88 reports in the 12 months to June 2026, close to the 95 of 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 Labetalol hydrochloride 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 Labetalol hydrochloride?

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 Labetalol hydrochloride as a suspect or interacting product; reports listing it only as a concomitant medication (1,184) 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.