Reported Reactions

Adverse event reports that FDA received

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Revatio (sildenafil citrate) adverse event reports that FDA received

Name type
Brand name
Generic name
Sildenafil citrate
Class
Phosphodiesterase 5 inhibitor

What a report is

A report is not proof that the drug was the cause of the event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Drug reports received through . Device reports have a separate cutoff, 30 Sep 2026. Why a report count is not a rate.

Reports on file

From October 2005 to June 2026, FDA received 9,801 adverse event reports that name Revatio. In these reports the drug is a suspect or interacting product.

In the same period, 23,520 further reports name it only as a concomitant medicine. The counts on this page do not include these reports.

FDA received 77 reports in the 12 months to June 2026 and 161 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 77 (under 0.1%) name Revatio. Reports for patients 75 and over were 22.3% of the reports that name Revatio and 9.5% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate. A count of reports is not a count of events or of patients, because one event can have more than one report.

There are many instances of duplicative reports and some reports do not contain all the necessary information.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Suspect product

FDA records each drug in a report as suspect, concomitant or interacting. This page counts the reports in which Revatio is suspect or interacting. FDA says:

Any number of the drugs may be marked as suspect if thought to be responsible for one or more of the reactions, but that information is not validated.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Since the last update

FDA says:

Many factors can influence whether or not an event will be reported, such as the time a product has been marketed and publicity about an event.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The information in these reports cannot be used to estimate the incidence (occurrence rates) of the events reported.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

The latest update of the FDA data, recorded on , changed no count of this page.

  • In April to June 2026, FDA received 18 reports that name Revatio.
  • In January to March 2026, FDA received 18.
  • In April to June 2025, FDA received 29.

April to June 2026 is the latest closed quarter in the data. A closed quarter is a quarter for which the FDA files have most of the reports.

All updatesFeed of updates (RSS)

Reaction lookup

These are the reaction terms that the reports record, with the number of reports for each term. Type a term or a plain word to find its count.

What this list leaves out

The table lists the 541 reaction terms that 5 or more reports record. A term with fewer than 5 reports is not in the table.

The site keeps reaction terms for 9,799 of the 9,801 reports (99.9%).

The reports of the other years are not in the counts.

So a count in the table can be lower than the count of FDA.

The table shows the first 50 of 541 terms.

Reaction terms in the reports that name Revatio, most reports first
Reaction term (MedDRA) and plain meaningReportsShare of the 9,801 reports
Deaththe patient died; cause not stated by this term2,25423%
Dyspnoeashortness of breath98910.1%
Pulmonary hypertensionhigh pressure in the lung arteries6356.5%
Malaisegeneral feeling of being unwell5705.8%
Product use issuea problem in how the product was used5485.6%
Off label useused for a purpose or in a way not on the label5405.5%
Headachehead pain4724.8%
Pneumonialung infection4634.7%
Falla fall3463.5%
Condition aggravatedthe condition being treated got worse3353.4%
Dizzinesslight-headedness or unsteadiness3203.3%
Fatiguetiredness3173.2%
Hypotensionlow blood pressure3173.2%
Diarrhoealoose or frequent stools3113.2%
Cardiac failureheart failure2892.9%
Cardiac failure congestivecongestive heart failure2862.9%
Fluid retentionthe body holding extra fluid2832.9%
Nauseafeeling sick2642.7%
Drug ineffectivethe medicine did not work as expected2442.5%
Weight decreasedweight loss2042.1%
Astheniaweakness or lack of energy2032.1%
Cardiac disorder2032.1%
Cough2022.1%
Oedema peripheralswelling of the legs, ankles or hands1992%
Painpain, site not specified1911.9%
Vomitingbeing sick1781.8%
Pulmonary arterial hypertension1721.8%
Renal failurekidney failure1711.7%
Oxygen saturation decreased1681.7%
Epistaxisnosebleed1661.7%
Chest pain1651.7%
Nasopharyngitisa cold1641.7%
Disease progressionthe disease advanced1601.6%
Anaemialow red blood cells1551.6%
Respiratory failurethe lungs could not supply enough oxygen1501.5%
Pain in extremitypain in an arm or leg1461.5%
Chronic obstructive pulmonary diseaseCOPD, a long-term lung disease1411.4%
Peripheral swellingswelling of the arms or legs1331.4%
Right ventricular failure1331.4%
Product use in unapproved indicationused for a purpose not on the label1281.3%
Weight increasedweight gain1261.3%
Syncopefainting1221.2%
Feeling abnormalfeeling odd or not right1201.2%
Myocardial infarctionheart attack1191.2%
Hospitalisationadmission to hospital1181.2%
Insomniadifficulty sleeping1151.2%
Oedemaswelling from fluid1141.2%
Gait disturbancedifficulty walking1131.2%
Flushingsudden reddening or warmth of the skin1101.1%
Lung disordera lung problem, type not specified1101.1%

Download all 541 terms of Revatio (CSV)

The counts add to more than 9,801 reports, because one report can record more than one term. FDA says:

No individual drug is connected to any individual reaction. When a report lists multiple drugs and multiple reactions, there is no way to conclude from the data therein that a given drug is responsible for a given reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The CSV file has the same rows and the same limits. Its last row is a note that says so.

MedDRA term

The person who codes a report selects the preferred term that agrees best with the description of the reporter. The words under a term are the plain meaning that this site gives.

Not the label

The FDA-approved label of a product lists its adverse reactions. See the official pages at the end of this page.

Same ingredient, other names

Reporters write a brand name or a generic name. Each name has its own page and its own count.

Names of Sildenafil with a page, in the order generic names, brand names, names as reported
NameName typeReports
SildenafilGeneric name10,726
Sildenafil citrateGeneric name5,933
Revatio (this page)Brand name9,801
ViagraBrand name28,349

Sum of the separately reported names: 54,809. A report that names two of these names is in the sum two times. The sum is not the number of reports for the ingredient.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Outcomes by year

The table gives the outcomes that the reporters gave, in the terms of FDA.

Outcomes in the reports that name Revatio, by the year of the openFDA file that holds the report

The table continues to the right.

Year of the openFDA fileReportsSeriousDeathLife-threateningHospitalization (initial or prolonged)Disability or Permanent DamageCongenital Anomaly/Birth DefectOther Serious (Important Medical Events)Not serious
2005220000020
20064140321300321
200779721251550557
200814011843226227722
2009250199141427216551
201040939227010633016317
201147542326710814016652
2012998898503826020443100
20131,052962539193158056090
201490370635423231100460197
20151,065811335937641510254
20161,0087972941141870545211
2017692550270425150347142
2018532414177920470230118
2019558391145919421213167
20205464001341320540220146
202142539220651792018733
202214913669352005613
202313412057560014614
20241141054524700459
202514912956255007620
202680792304510451

An outcome in a report is not proof that the drug was the cause. The reporter gives the outcome, and FDA does not verify it. FDA says:

The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The six headings with the names of FDA are the outcome terms of FDA. A report can have more than one outcome. The columns Serious and Not serious are the two values of the openFDA field serious. For the value serious, openFDA gives this description:

The adverse event resulted in death, a life threatening condition, hospitalization, disability, congenital anomaly, or other serious condition

Source: openFDA, Drug adverse event fields (YAML reference). The site read the page on .

The year is the year of the openFDA file that holds the latest version of the report. It is not always the year in which FDA first received the report. The chart of the next section uses the year of first receipt. The latest year is not complete.

Reports by year and month

Reports that name Revatio, by the year in which FDA received them
01,0002,000200520092013201720212025

The column of 2026 has an outline, because the year is not complete. It has the reports that FDA received through June 2026 only.

Show the figures of the chart as a table
Reports that name Revatio, by the year in which FDA received them
YearReports
20052
200638
200772
2008123
2009192
2010507
2011497
20121,149
20131,043
20141,097
20151,184
20161,006
2017714
2018546
2019525
2020339
2021190
2022144
2023131
2024149
2025117
202636
Reports that name Revatio, by month, five years to June 2026
0255020222023202420252026

FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Why a count moves

A count moves for many reasons. The guide gives FDA's words about them.

Patients and reporters

Age of the patient in the reports that name Revatio
AgeReportsShareShare as a bar
Under 21431.5%
2 to 111371.4%
12 to 17420.4%
18 to 445585.7%
45 to 642,06721.1%
65 to 741,82418.6%
75 and over2,18822.3%
Age not given2,84229%
Sex of the patient in the reports that name Revatio
SexReportsShareShare as a bar
Female6,30264.3%
Male3,06931.3%
Unknown or not given4304.4%
Type of reporter in the reports that name Revatio
ReporterReportsShareShare as a bar
Physician1,97020.1%
Pharmacist4784.9%
Other health professional2,23222.8%
Lawyer130.1%
Consumer or non-health professional4,98150.8%
Not given1271.3%

Age and sex are as the report gives them. The reporter is the primary source in the report. 74.1% of the reports give the United States as the country.

Reason for use

Reason for use (indication) that the reports of Revatio record
Indication as recorded (MedDRA)ReportsShare
Pulmonary hypertension3,31633.8%
Pulmonary arterial hypertension2,06121%
Cardiac disorder1221.2%
Lung disorder951%
Dyspnoea680.7%
Hypertension600.6%

The reporter fills in the indication, and the field is often empty. Each share is of all 9,801 reports.

Drugs in the same reports

Other drugs that the reports of Revatio name, in any role, in order of name
DrugReports that name the two
Ambrisentan450
Aspirin386
Coumadin395
Furosemide828
Lasix746
Letairis549
Opsumit506
Spironolactone465
Tracleer581
Warfarin510

The table has the 10 drug names that these reports name most. Two names in one report says only that the report recorded the two. It says nothing about the part of a product in the event.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Pages near this one

These links are for navigation. No count selected them. The class page lists each drug of the class.

Official pages

The site checked these addresses on . The links open in a new tab.

Cite this page

Reported Reactions. Revatio: adverse event reports that FDA received. https://reportedreactions.com/drug/revatio/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Drug Adverse Event (FAERS) bulk files, release of 29 Oct 2026. The files have the reports that FDA received through 30 Jun 2026. A drug name is the name on the report. The site matches it to a brand name or a generic name of the National Drug Code Directory of 2 Nov 2026. A class is the pharmacologic class (EPC) of the FDA label.

A report is in the count when it names Revatio as a suspect or interacting product. The 23,520 reports that name it only as a concomitant medicine are not in the count. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

Do these reports show that Revatio was responsible for the reactions?

No. FDA says:

For any given report, there is no certainty that a suspected drug caused the event.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

A reaction can relate to the condition that the drug treats, to other medicines, or to something else.

Is this the list of reactions on the label of Revatio?

No. It is a count of what people reported to FDA: 9,801 reports from October 2005 to June 2026. The FDA-approved label of a product lists its adverse reactions. The official pages at the end of this page link to the labels.

Who sent these reports?

Consumer or non-health professional (50.8%), other health professional (22.8%) and physician (20.1%). These are the types of reporter for the reports that name this drug.

If a manufacturer receives an adverse event report, it is normally required to send the report to FDA.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

How does a person report an adverse event?

FDA runs MedWatch, a program that takes voluntary reports from health professionals, patients and consumers. The guide on how to report has the links.