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Riociguat Side Effects

The most commonly reported side effects of riociguat include dyspnoea, death, and headache, based on 31,586 FDA adverse event reports from 2011 to 2025.

Riociguat side effects

Percentages show how often each reaction appears relative to total reports for riociguat.

1
Dyspnoea17.7%5,583
2
Death17.0%5,355
3
Headache14.0%4,417
4
Nausea11.7%3,697
5
Diarrhoea11.0%3,461
6
Dizziness10.9%3,434
7
Hypotension10.5%3,330
8
Fatigue9.1%2,887
9
Hospitalisation7.2%2,272
10
Vomiting6.6%2,081
11
Oedema Peripheral5.6%1,774
12
Pneumonia5.5%1,739
13
Cough5.5%1,737
14
Fluid Retention5.5%1,733
15
Malaise5.2%1,646

These are voluntary reports and do not establish that riociguat caused these reactions.

Report severity

77.0%Serious24,319 reports
47.3%Hospitalizations14,944 reports
22.2%Fatal7,018 reports

Seriousness is determined by the reporter, not by OpenClaim.

Riociguat drug interactions

Other drugs that appear in adverse event reports alongside riociguat. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.

Also suspected

1
Treprostinil27.9%8,820
2
Ambrisentan14.0%4,431
3
Macitentan13.4%4,231
4
Selexipag7.6%2,413
5
Epoprostenol-sodium3.3%1,050
6
Rivaroxaban2.6%827
7
Bosentan2.6%825
8
Iloprost1.3%412
9
Tadalafil1.2%389
10
Sotatercept-csrk1.1%361
11
Warfarin0.7%226
12
Sildenafil-citrate0.7%208
13
Furosemide0.6%183
14
Apixaban0.6%177
15
Acetaminophen0.4%141

Taken alongside

1
Macitentan15.3%4,824
2
Warfarin12.7%4,009
3
Furosemide10.8%3,406
4
Apixaban9.6%3,019
5
Treprostinil9.3%2,936
6
Ambrisentan9.2%2,917
7
Oxygen8.5%2,682
8
Spironolactone6.5%2,053
9
Acetaminophen5.2%1,651
10
Potassium-chloride4.9%1,543
11
Albuterol4.9%1,540
12
Ergocalciferol4.7%1,494
13
Rivaroxaban4.7%1,477
14
Selexipag4.4%1,404
15
Levothyroxine-sodium4.0%1,276

Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.

Who reports riociguat side effects

71.1% of riociguat adverse event reports involve female patients and 26.6% involve male patients. The largest age group is elderly at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female71.1%
Male26.6%
Unknown2.4%

Age group

< 20.2%
2–110.2%
12–170.2%
18–6449.3%
65+50.1%

What is riociguat used for

Conditions and purposes for which patients were taking riociguat when the adverse event was reported.

Acquired Immunodeficiency SyndromeActivated Protein C ResistanceAnticoagulant TherapyArthritisAnaemiaAtrial FibrillationAtrial Septal DefectBlood Pressure MeasurementBronchiectasisCardiac DisorderCardiac FailureChronic Obstructive Pulmonary DiseaseChronic Respiratory DiseaseCollagen DisorderConnective Tissue Disorder

Showing 15 of 115 indications

Riociguat brand names and reporting trend

Riociguat is sold under the brand name Adempas.

Brand names

Adempas2,803

Quarterly reports (20112025)

20112016202020242025

An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.

Taking riociguat with another medication?

Ask OpenClaim about your specific drug combination. Get a sourced report using FDA data, drug labels, and medical literature.