Ambrisentan
According to the FDA label: Ambrisentan tablets are indicated for the treatment of pulmonary arterial hypertension (PAH) (WHO Group 1): To improve exercise ability and delay clinical worsening. In combination with tadalafil to reduce the risks of disease progression and hospitalization for worsening PAH, and to improve exercise ability [ see Clinical Studies (14.2) ].
61,516 adverse event reports submitted to the FDA (2007–2026)
Top Reported Adverse Events
The most frequently reported events in association with Ambrisentan in the FAERS database. These are events reported by patients taking this medication, not necessarily caused by it. A single report may include multiple events.
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Dyspnoea 9,117 reports
Shortness of breath or difficulty breathing. Also spelled dyspnea in American English.
Full definition in the glossary → See all drugs reporting this event →Death 7,173 reports
A report that the person died. A death appearing in reports for a drug does not mean the drug caused it. Reports record that a death occurred while the medication was being used, which can happen for many unrelated reasons.
Full definition in the glossary →Headache 5,693 reports
Pain in the head or upper neck.
Full definition in the glossary → See all drugs reporting this event →Pneumonia 4,353 reports
An infection that inflames the air sacs in the lungs, which can cause cough, fever, and difficulty breathing.
Full definition in the glossary →Diarrhoea 4,013 reports
Loose or watery bowel movements, often frequent. Also spelled diarrhea in American English.
Full definition in the glossary → See all drugs reporting this event →Nausea 3,375 reports
The feeling of sickness in your stomach that often comes before vomiting.
Full definition in the glossary → See all drugs reporting this event →Fatigue 3,302 reports
Extreme tiredness or lack of energy that does not improve with rest.
Full definition in the glossary → See all drugs reporting this event →Dizziness 3,065 reports
A feeling of being lightheaded, unsteady, or like the room is spinning.
Full definition in the glossary → See all drugs reporting this event →Malaise 2,625 reports
A general feeling of being unwell or uncomfortable, without a specific symptom.
Full definition in the glossary →Fluid Retention 2,468 reports
A buildup of excess fluid in the body, which can cause swelling.
Full definition in the glossary →Off Label Use 2,166 reports
Using a medication for a condition or in a way that the FDA has not officially approved. This is common and often legal, and a report of it does not mean something went wrong. Doctors sometimes prescribe drugs off label based on their judgment.
Full definition in the glossary →Peripheral Swelling 2,125 reports
Swelling in the arms, legs, hands, or feet, often from fluid buildup.
Full definition in the glossary → See all drugs reporting this event →Hypotension 2,109 reports
Cough 2,101 reports
A reflex that clears the throat or airways.
Full definition in the glossary → See all drugs reporting this event →Chest Pain 2,027 reports
Pain or discomfort in the chest. Chest pain has many causes, but it is always worth taking seriously and discussing with a doctor.
Full definition in the glossary → See all drugs reporting this event →
Ranked by frequency of reports, not severity. The most-reported event is not necessarily the most dangerous or the most common in patients taking this drug.
Who Is Reporting
Demographics of patients in FAERS reports that included this information. Not all reports include patient demographics.
By Sex
View reporter sex data as a table
| Sex | Reports |
|---|---|
| Female | 45,025 |
| Male | 14,888 |
| Unknown | 154 |
By Age Group
View age group data as a table
| Age group | Reports |
|---|---|
| 0-17 | 1,827 |
| 18-34 | 3,069 |
| 35-49 | 7,595 |
| 50-64 | 14,939 |
| 65-74 | 11,439 |
| 75+ | 9,511 |
This shows who filed reports, reflecting who takes this drug and who tends to report, not who is at greatest risk.
Reported Outcomes
Outcomes recorded in FAERS reports that included Ambrisentan. A single report may involve multiple reactions, each with a different outcome. These categories are defined by FDA reporting guidelines, not by PillSignal.
View outcome data as a table
| Outcome | Reports |
|---|---|
| Other Serious | 33,260 |
| Hospitalization | 30,544 |
| Non-Serious | 12,543 |
| Death | 9,976 |
| Life-Threatening | 694 |
| Disability | 416 |
Serious outcomes are far more likely to be reported than mild ones, so this overstates how often outcomes are serious. A recorded death does not mean the drug caused it.
Report Volume Over Time
Number of FAERS reports received per quarter for Ambrisentan. Changes in volume may reflect shifts in prescribing rates, media attention, or reporting behavior, not changes in the medication's safety profile.
View report trend as a table
| Year | Reports |
|---|---|
| 2007 | 8 |
| 2008 | 43 |
| 2009 | 60 |
| 2010 | 86 |
| 2011 | 160 |
| 2012 | 216 |
| 2013 | 244 |
| 2014 | 1,876 |
| 2015 | 5,723 |
| 2016 | 7,109 |
| 2017 | 6,907 |
| 2018 | 7,281 |
| 2019 | 6,276 |
| 2020 | 3,755 |
| 2021 | 3,660 |
| 2022 | 4,775 |
| 2023 | 4,840 |
| 2024 | 4,560 |
| 2025 | 3,331 |
| 2026 (partial) | 606 |
The steep increase around 2004 reflects the FDA's move to electronic submission, not a change in this drug's safety. Trends track reporting volume, not risk.
Medications commonly reported with Ambrisentan
In FDA adverse event reports that mention Ambrisentan, these medications appeared most often in the same report.
- Tadalafil (17,611 reports)
- Treprostinil (15,999 reports)
- Sildenafil (10,465 reports)
- Furosemide (6,234 reports)
- Selexipag (6,008 reports)
This reflects co-occurrence in submitted reports, not evidence of drug interaction or combined risk. People often report several medications taken for the same condition or for unrelated reasons. Talk to a doctor or pharmacist about your specific medications.
Related Drugs
Other medications with similar adverse event profiles in FDA FAERS reports.
Data Source
This data is sourced from the FDA's Adverse Event Monitoring System (AEMS), formerly FAERS, via the OpenFDA API. PillSignal is not affiliated with the FDA.
View this data on the FDA website →Data last updated: June 2026