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Danaparoid Side Effects

The most commonly reported side effects of danaparoid include heparin-induced thrombocytopenia, thrombocytopenia, and condition aggravated, based on 914 FDA adverse event reports from 2004 to 2025.

Danaparoid side effects

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

1
Heparin-induced Thrombocytopenia7.7%70
2
Thrombocytopenia6.1%56
3
Condition Aggravated5.8%53
4
Thrombocytopenia4.6%42
5
Heparin-induced Thrombocytopenia4.5%41
6
Platelet Count Decreased3.8%35
7
Disseminated Intravascular Coagulation3.6%33
8
Anaemia3.4%31
9
Multi-organ Failure3.4%31
10
Blood Lactate Dehydrogenase Increased3.3%30
11
Sepsis3.3%30
12
Haemoglobin Decreased3.2%29
13
Aspartate Aminotransferase Increased3.2%29
14
Hepatic Function Abnormal3.1%28
15
Pneumonia3.0%27

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

Report severity

96.8%Serious885 reports
45.4%Hospitalizations415 reports
39.1%Fatal357 reports

Seriousness is determined by the reporter, not by OpenClaim.

Danaparoid drug interactions

Other drugs that appear in adverse event reports alongside danaparoid. 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
Heparin11.2%102
2
Enoxaparin-sodium9.5%87
3
Furosemide3.4%31
4
Clavulanate-potassium3.4%31
5
Fondaparinux-sodium3.4%31
6
Amoxicillin3.3%30
7
Warfarin2.3%21
8
Cefotaxime-sodium2.1%19
9
Tacrolimus2.0%18
10
Aspirin1.9%17
11
Tinzaparin-sodium1.9%17
12
Melphalan1.9%17
13
Trastuzumab1.8%16
14
Pertuzumab1.8%16
15
Fludarabine-phosphate1.6%15

Taken alongside

1
Furosemide15.0%137
2
Meropenem10.5%96
3
Heparin10.4%95
4
Acetaminophen9.1%83
5
Omeprazole8.3%76
6
Methylprednisolone7.5%69
7
Vancomycin7.4%68
8
Fluconazole6.7%61
9
Hydrocortisone6.0%55
10
Potassium-chloride6.0%55
11
Insulin5.7%52
12
Bisoprolol-fumarate5.4%49
13
Prednisolone5.3%48
14
Granisetron5.0%46
15
Famotidine4.9%45

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 danaparoid side effects

44.0% of danaparoid adverse event reports involve female patients and 48.4% involve male patients. The largest age group is elderly at 49%. These figures reflect who reports side effects, not underlying risk.

Sex

Female44.0%
Male48.4%
Unknown7.7%

Age group

< 22.0%
2–114.2%
12–171.8%
18–6442.5%
65+49.5%

What is danaparoid used for

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

Acute Lymphocytic LeukaemiaAcute Myeloid LeukaemiaAdverse EventAngina UnstableAnticoagulant TherapyAnticoagulation Drug LevelAortic ThrombosisArrhythmiaArterial ThrombosisAtrial FibrillationAcute Generalised Exanthematous PustulosisAnticoagulant TherapyAutoimmune Heparin-induced ThrombocytopeniaBrain OedemaBrain Stem Stroke

Showing 15 of 84 indications

Danaparoid brand names and reporting trend

Danaparoid is sold under the brand name Orgaran.

Brand names

Orgaran470

Quarterly reports (20042025)

20052010201520202025

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

Taking danaparoid with another medication?

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