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Berotralstat Side Effects

The most commonly reported side effects of berotralstat include hereditary angioedema, diarrhoea, and nausea, based on 764 FDA adverse event reports from 2017 to 2025. 6.4% of reports found the drug to be ineffective.

Berotralstat side effects

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

1
Hereditary Angioedema28.5%218
2
Diarrhoea6.9%53
3
Nausea6.8%52
4
Drug Ineffective6.4%49
5
Condition Aggravated5.8%44
6
Headache5.6%43
7
Gastrointestinal Disorder5.2%40
8
Abdominal Pain5.2%40
9
Fatigue4.7%36
10
Vomiting4.7%36
11
Covid-194.6%35
12
Malaise4.3%33
13
Abdominal Pain Upper4.2%32
14
Dizziness3.8%29
15
Product Dose Omission Issue3.5%27

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

Report severity

50.3%Serious384 reports
25.1%Hospitalizations192 reports
3.5%Fatal27 reports

Seriousness is determined by the reporter, not by OpenClaim.

Berotralstat drug interactions

Other drugs that appear in adverse event reports alongside berotralstat. 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
Lanadelumab-flyo7.7%59
2
Icatibant-acetate7.5%57
3
Dupilumab0.8%6
4
Ecallantide0.4%3
5
Cephalexin0.4%3
6
Ceftriaxone-sodium0.4%3
7
Sebetralstat0.4%3
8
Aclidinium-bromide0.1%1
9
Pomalidomide0.1%1
10
Escitalopram-oxalate0.1%1
11
Indapamide0.1%1
12
Amlodipine0.1%1
13
Methotrexate0.1%1
14
Ciprofloxacin0.1%1
15
Apixaban0.1%1

Taken alongside

1
Icatibant-acetate18.3%140
2
Epinephrine9.9%76
3
Cetirizine-hydrochloride8.0%61
4
Acetaminophen7.2%55
5
Ergocalciferol6.8%52
6
Albuterol6.4%49
7
Famotidine5.8%44
8
Omeprazole5.8%44
9
Ondansetron5.6%43
10
Levothyroxine-sodium5.6%43
11
Amlodipine5.6%43
12
Diphenhydramine5.2%40
13
Montelukast-sodium4.8%37
14
Gabapentin4.6%35
15
Fluticasone4.6%35

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 berotralstat side effects

30.2% of berotralstat adverse event reports involve female patients and 10.6% involve male patients. The largest age group is adult at 74%. These figures reflect who reports side effects, not underlying risk.

Sex

Female30.2%
Male10.6%
Unknown59.2%

Age group

< 20.4%
2–110.0%
12–177.5%
18–6473.6%
65+18.4%

What is berotralstat used for

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

AsthmaAngioedemaComplement Deficiency DiseaseGastrooesophageal Reflux DiseaseHereditary AngioedemaHereditary Angioedema With C1 Esterase Inhibitor DeficiencyHereditary AngioedemaHereditary Angioedema With C1 Esterase Inhibitor DeficiencyHereditary Angioedema With Normal C1 Esterase InhibitorProduct Used For Unknown IndicationProduct Used For Unknown IndicationProphylaxis

Berotralstat brand names and reporting trend

Berotralstat is sold under the brand name Orladeyo.

Brand names

Orladeyo3

Quarterly reports (20172025)

2017202220242025

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

Taking berotralstat with another medication?

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