Reported Reactions

Drugs › Dihydropyridine calcium channel blocker

Generic name

Felodipine: adverse event reports filed with FDA

2,049 reports list it as a suspect or interacting product, 2004–2026. Class: Dihydropyridine calcium channel blocker. Also reported as Felodipine Er, Felodipine Extended-Release Tablets Usp, Felodipine Extended-Release Tablets Usp 5mg.

2,049
reports as suspect product
0% of all reports · about 91 a year
145
reports, 12 months to June 2026
128 in the 12 months before
91.4%
marked serious by the reporter
82.3% across the class
6.6%
record death among outcomes, as reported
136 reports · not verified by FDA

2,049 adverse event reports received by FDA list felodipine, a generic name as a suspect or interacting product, from January 2004 to June 2026. A further 9,372 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, 145 reports listed it, up 13% from 128 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 91 reports a year and 0% of the 20,646,523 reports in the database, and 7.6% of the reports for the dihydropyridine calcium channel 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 fatigue (28.1%), headache (28%) and palpitations (27.2%). A report can list several reactions, so shares add to more than 100%; 488 different terms appear across these reports. Fatigue is recorded in 28.1% of these reports, a larger share than in the median dihydropyridine calcium channel blocker drug (1.6%).

91.4% of the reports are marked serious by the reporter (82.3% across the class); 6.6% record death among the outcomes and 41% record hospitalisation, as reported. 30.6% of the reports came from other health professionals, and the largest patient age group is 45 to 64 (28.9%). 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

092184Jul 2021: 5Aug 2021: 8Sep 2021: 6Oct 2021: 6Nov 2021: 4Dec 2021: 122022Jan 2022: 6Feb 2022: 7Mar 2022: 9Apr 2022: 5May 2022: 11Jun 2022: 5Jul 2022: 4Aug 2022: 9Sep 2022: 11Oct 2022: 5Nov 2022: 3Dec 2022: 22023Jan 2023: 7Feb 2023: 10Mar 2023: 16Apr 2023: 184May 2023: 111Jun 2023: 25Jul 2023: 8Aug 2023: 14Sep 2023: 18Oct 2023: 12Nov 2023: 9Dec 2023: 52024Jan 2024: 9Feb 2024: 20Mar 2024: 6Apr 2024: 3May 2024: 13Jun 2024: 9Jul 2024: 11Aug 2024: 6Sep 2024: 15Oct 2024: 6Nov 2024: 10Dec 2024: 62025Jan 2025: 6Feb 2025: 36Mar 2025: 12Apr 2025: 9May 2025: 1Jun 2025: 10Jul 2025: 8Aug 2025: 6Sep 2025: 14Oct 2025: 10Nov 2025: 7Dec 2025: 192026Jan 2026: 7Feb 2026: 14Mar 2026: 4Apr 2026: 14May 2026: 22Jun 2026: 20

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

02104192004: 6420042005: 372006: 502007: 4120072008: 542009: 472010: 5420102011: 672012: 1122013: 5120132014: 852015: 652016: 5420162017: 402018: 1052019: 12420192020: 932021: 762022: 7720222023: 4192024: 1142025: 13820252026: 81

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Felodipine reports recording the termmedian drug in dihydropyridine calcium channel blocker

  1. Fatiguetiredness28.1%576
  2. Headachehead pain28%573
  3. Palpitationsawareness of the heartbeat27.2%558
  4. Abdominal discomfortstomach discomfort26.5%544
  5. Pyrexiafever26.5%542
  6. Covid-19COVID-19 infection26.2%536
  7. Tinnitusringing in the ears26.1%534
  8. Migrainemigraine26%532
  9. Painpain, site not specified25.9%530
  10. Dizzinesslight-headedness or unsteadiness24.3%498
  11. Off label useused for a purpose or in a way not on the label23.7%486
  12. Vomitingbeing sick23%472
  13. Dyspnoeashortness of breath23%471
  14. Nauseafeeling sick21.5%440
  15. Diarrhoealoose or frequent stools20.6%422
  16. Chest painchest pain20.5%421
  17. Peripheral swellingswelling of the arms or legs20.5%421
  18. Intentional product use issuedeliberate use not as intended20.5%420
  19. Malaisegeneral feeling of being unwell20.4%419
  20. Arthralgiajoint pain20.2%414
  21. Pruritusitching20.2%414
  22. Angioedemadeep swelling of skin or mucous membranes20.1%412
  23. Muscular weaknessmuscle weakness20%410
  24. Back painback pain19.8%406
  25. Dehydrationdehydration19.7%404
  26. Visual impairmentreduced vision19.7%403
  27. Anxietyanxiety19.6%401
  28. Feeling abnormalfeeling odd or not right19.5%400
  29. Heart rate increaseda fast heart rate reading19.5%399
  30. Insomniadifficulty sleeping19.2%394

Top 30 of 488 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 6 drugs in the dihydropyridine calcium channel 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

Death6.6%136
Life-threatening12.9%264
Hospitalisation (initial or prolonged)41%840
Disability11.4%234
Congenital anomaly1.1%22
Other serious63.4%1,299
Not serious8.6%177

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 26,910 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 20.4%9
2 to 110%0
12 to 170.4%9
18 to 445.5%113
45 to 6428.9%593
65 to 7419.4%397
75 and over23.8%487
Age not given21.5%441

Patient sex

Female48.9%1,001
Male38.6%791
Not given12.5%257

Who reported

Physician29.8%611
Pharmacist9.5%195
Other health professional30.6%626
Lawyer0.1%2
Consumer or non-health professional24.9%511
Not given5.1%104

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 18% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Hypertension66232.3%
Blood pressure abnormal29514.4%
Blood pressure measurement723.5%
Essential hypertension371.8%
Ill-defined disorder100.5%
Blood pressure90.4%

The indication field is filled in by the reporter and is often blank; shares are of all 2,049 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Felodipine reports
Omeprazole63831.1%
Lansoprazole59629.1%
Dapagliflozin54426.5%
Bisoprolol51024.9%
Simvastatin48723.8%
Levothyroxine sodium46022.4%
Esomeprazole43221.1%
Candesartan41720.4%
Hydrochlorothiazide39819.4%
Aspirin38718.9%

Other products listed in reports where Felodipine 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

MeasureFelodipineDihydropyridine calcium channel blockerAll reports
Reports as suspect product2,04926,91020,646,523
Share of that pool—7.6%0%
Reports, latest 12 months145—1,332,454
Marked serious91.4%82.3%57.4%
Death recorded among outcomes, per 1,000 reports6611291
Hospitalisation recorded, per 1,000 reports410380213
Consumer-filed share24.9%25.9%45.8%
Top term, share of reportsFatigue 28.1%median 1.6%3.7%

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 dihydropyridine calcium channel blocker class

DrugName typeReportsLatest 12 monthsMarked serious
Amlodipine besylategeneric11,8991,00282%
Nifedipinegeneric10,11964479.8%
Nicardipine hydrochloridegeneric1,0829197.4%
Nicardipinegeneric1,0727796.7%
Procardiabrand689352%

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 Felodipine reports

How many adverse event reports has FDA received for Felodipine?

2,049 reports list Felodipine as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 145 of them arrived in the latest 12 months. Another 9,372 list it only as a concomitant medication.

What reactions are recorded in Felodipine reports?

fatigue (28.1%), headache (28%), palpitations (27.2%), abdominal discomfort (26.5%) and pyrexia (26.5%). 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 Felodipine was responsible.

How serious are the reports?

91.4% are marked serious by the reporter. Among the outcomes recorded, 6.6% of reports include death and 41% 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 (30.6%), physician (29.8%) and consumer or non-health professional (24.9%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Felodipine rising?

145 reports in the 12 months to June 2026, up 13% from 128 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 Felodipine 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 Felodipine?

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 Felodipine as a suspect or interacting product; reports listing it only as a concomitant medication (9,372) 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.