OpenClaim

Dalteparin Side Effects

The most commonly reported side effects of dalteparin include nausea, off label use, and dyspnoea, based on 14,688 FDA adverse event reports from 2004 to 2025.

Dalteparin side effects

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

1
Nausea5.8%856
2
Off Label Use5.7%842
3
Dyspnoea4.9%723
4
Vomiting4.6%678
5
Diarrhoea4.1%607
6
Pyrexia4.1%596
7
Fatigue3.9%579
8
Abdominal Pain3.8%560
9
Sepsis3.5%518
10
Constipation3.4%494
11
Acute Kidney Injury3.3%492
12
Pulmonary Embolism3.3%490
13
Pneumonia3.3%490
14
Anaemia3.3%480
15
General Physical Health Deterioration3.1%460

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

Report severity

94.3%Serious13,851 reports
55.3%Hospitalizations8,129 reports
19.9%Fatal2,919 reports

Seriousness is determined by the reporter, not by OpenClaim.

Dalteparin drug interactions

Other drugs that appear in adverse event reports alongside dalteparin. 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
Dexamethasone4.4%653
2
Aspirin4.2%620
3
Acetaminophen4.1%595
4
Ceftriaxone-sodium4.0%588
5
Lenalidomide3.5%507
6
Warfarin3.4%505
7
Heparin3.4%503
8
Simvastatin3.1%452
9
Insulin3.0%443
10
Rituximab3.0%435
11
Lansoprazole2.8%416
12
Albuterol2.8%406
13
Cyclophosphamide2.8%404
14
Carboplatin2.7%397
15
Metronidazole2.6%384

Taken alongside

1
Acetaminophen23.2%3,407
2
Furosemide11.0%1,609
3
Omeprazole10.9%1,595
4
Pantoprazole-sodium10.5%1,548
5
Ondansetron9.7%1,428
6
Dexamethasone9.4%1,381
7
Aspirin8.8%1,286
8
Metoclopramide-hydrochloride7.5%1,095
9
Amlodipine7.2%1,058
10
Albuterol6.4%937
11
Levothyroxine-sodium6.3%929
12
Atorvastatin-calcium6.1%900
13
Bisoprolol-fumarate5.7%841
14
Allopurinol5.7%839
15
Lansoprazole5.7%835

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 dalteparin side effects

47.0% of dalteparin adverse event reports involve female patients and 42.5% involve male patients. The largest age group is elderly at 51%. These figures reflect who reports side effects, not underlying risk.

Sex

Female47.0%
Male42.5%
Unknown10.4%

Age group

< 22.0%
2–110.8%
12–170.7%
18–6445.8%
65+50.7%

What is dalteparin used for

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

AbortionAbortion SpontaneousAbortion ThreatenedAbscess RuptureAcute Coronary SyndromeAcute Kidney InjuryAcute Myocardial InfarctionAdenocarcinoma PancreasAdministration Site ThrombosisAdverse EventAeromona InfectionAnalgesic TherapyAneurysmAngina PectorisAngina Unstable

Showing 15 of 471 indications

Dalteparin brand names and reporting trend

Dalteparin is sold under the brand name Fragmin.

Brand names

Fragmin7,827

Quarterly reports (20042025)

20052010201520202025

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

Taking dalteparin with another medication?

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