Drugs › beta-Adrenergic blocker
Generic name
Nadolol: adverse event reports filed with FDA
1,763 reports list it as a suspect or interacting product, 2004–2026. Class: beta-Adrenergic blocker. Also reported as Nadolol Tablets Usp.
- 1,763
- reports as suspect product
- 0% of all reports · about 79 a year
- 56
- reports, 12 months to June 2026
- 126 in the 12 months before
- 86.5%
- marked serious by the reporter
- 78.7% across the class
- 6.4%
- record death among outcomes, as reported
- 113 reports · not verified by FDA
1,763 adverse event reports received by FDA list nadolol, a generic name as a suspect or interacting product, from March 2004 to June 2026. A further 5,817 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, 56 reports listed it, down 56% from 126 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 79 reports a year and 0% of the 20,646,523 reports in the database, and 1.2% 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.
The MedDRA terms listed most often are drug ineffective (54.2%), macular degeneration (45.3%) and off label use (16.7%). A report can list several reactions, so shares add to more than 100%; 333 different terms appear across these reports. Drug ineffective is recorded in 54.2% of these reports, a larger share than in the median beta-Adrenergic blocker drug (8.3%).
86.5% of the reports are marked serious by the reporter (78.7% across the class); 6.4% record death among the outcomes and 33.7% record hospitalisation, as reported. 43.7% of the reports came from other health professionals, and the largest patient age group is 65 to 74 (18.8%). 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
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 Nadolol reports recording the termmedian drug in beta-adrenergic blocker
- Drug ineffectivethe medicine did not work as expected54.2%956
- Macular degenerationa disease of the central retina45.3%799
- Off label useused for a purpose or in a way not on the label16.7%294
- Weight decreasedweight loss14.9%262
- Chronic sinusitis13.7%242
- Malaisegeneral feeling of being unwell13.6%239
- Nauseafeeling sick13.5%238
- Painpain, site not specified13.4%237
- Pyrexiafever12.9%228
- Paraesthesia oral12.8%226
- Infusion related reactiona reaction during or soon after an infusion12.5%221
- Dyspepsiaindigestion11.9%210
- Procedural painpain from a procedure11.7%206
- Headachehead pain11.5%202
- Rectal haemorrhage11.1%196
- Abdominal painstomach or belly pain10.9%193
- Anaemialow red blood cells10.8%191
- Haematocheziablood in the stool10.6%187
- Female genital tract fistula10.6%186
- Colitis ulcerative10.4%183
- Constipationconstipation10.4%183
- Radiculopathy10.4%183
- Erythemaskin redness10.3%181
- Colitisinflamed bowel10.2%180
- Frequent bowel movements10.1%178
- Oral candidiasisoral thrush10%177
- Vaginal discharge10%177
- Vaginal flatulence10%177
- Proctitis10%176
Top 30 of 333 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
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
Patient sex
Who reported
Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 38.7% of reports give the United States as the country of the event or reporter.
Reason for use recorded
| Indication as recorded (MedDRA) | Reports | Share |
|---|---|---|
| Hypertension | 51 | 2.9% |
| Migraine | 47 | 2.7% |
| Long QT syndrome | 43 | 2.4% |
| Ventricular tachycardia | 34 | 1.9% |
| Atrial fibrillation | 18 | 1% |
| Supraventricular tachycardia | 14 | 0.8% |
The indication field is filled in by the reporter and is often blank; shares are of all 1,763 reports.
Drugs most often listed in the same reports
| Drug (any role in the report) | Reports | Share of Nadolol reports |
|---|---|---|
| Alprazolam | 847 | 48% |
| Pregabalin | 820 | 46.5% |
| Metronidazole | 814 | 46.2% |
| Prednisone | 809 | 45.9% |
| Clarithromycin | 799 | 45.3% |
| Clotrimazole | 784 | 44.5% |
| Acetaminophen | 779 | 44.2% |
| Bisacodyl | 776 | 44% |
| Desonide | 760 | 43.1% |
| Nicoderm Cq | 750 | 42.5% |
Other products listed in reports where Nadolol 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
| Measure | Nadolol | beta-Adrenergic blocker | All reports |
|---|---|---|---|
| Reports as suspect product | 1,763 | 148,208 | 20,646,523 |
| Share of that pool | — | 1.2% | 0% |
| Reports, latest 12 months | 56 | — | 1,332,454 |
| Marked serious | 86.5% | 78.7% | 57.4% |
| Death recorded among outcomes, per 1,000 reports | 64 | 131 | 91 |
| Hospitalisation recorded, per 1,000 reports | 337 | 387 | 213 |
| Consumer-filed share | 33.1% | 26.8% | 45.8% |
| Top term, share of reports | Drug ineffective 54.2% | median 8.3% | 6.3% |
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 beta-adrenergic blocker class
| Drug | Name type | Reports | Latest 12 months | Marked serious |
|---|---|---|---|---|
| Metoprolol | generic | 27,410 | 1,520 | 88.2% |
| Bisoprolol | brand | 22,881 | 1,454 | 99.1% |
| Atenolol | generic | 17,022 | 444 | 84.9% |
| Propranolol | generic | 13,733 | 1,177 | 87.1% |
| Metoprolol succinate | generic | 10,416 | 664 | 65.4% |
| Metoprolol tartrate | generic | 9,103 | 557 | 72.4% |
| Bisoprolol fumarate | generic | 8,292 | 546 | 98.2% |
| Propranolol hydrochloride | generic | 6,102 | 484 | 71.9% |
| Timolol | generic | 4,818 | 97 | 20.7% |
| Hemangeol | brand | 4,383 | 441 | 5.4% |
| Nebivolol | generic | 4,211 | 386 | 93.9% |
| Toprol Xl | brand | 3,341 | 35 | 44.5% |
| Labetalol | generic | 2,960 | 192 | 88.7% |
| Bystolic | brand | 2,841 | 21 | 31.1% |
| Timolol maleate | generic | 2,743 | 120 | 29.9% |
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 Nadolol reports
How many adverse event reports has FDA received for Nadolol?
1,763 reports list Nadolol as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 56 of them arrived in the latest 12 months. Another 5,817 list it only as a concomitant medication.
What reactions are recorded in Nadolol reports?
drug ineffective (54.2%), macular degeneration (45.3%), off label use (16.7%), weight decreased (14.9%) and therapeutic product effect incomplete (14.8%). 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 Nadolol was responsible.
How serious are the reports?
86.5% are marked serious by the reporter. Among the outcomes recorded, 6.4% of reports include death and 33.7% 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 (43.7%), consumer or non-health professional (33.1%) and physician (17.4%). Most reports reach FDA through the manufacturer, which must forward reports it receives.
Are reports for Nadolol rising?
56 reports in the 12 months to June 2026, down 56% from 126 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 Nadolol 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 Nadolol?
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 Nadolol as a suspect or interacting product; reports listing it only as a concomitant medication (5,817) 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.