OpenClaim

Tipiracil Side Effects

The most commonly reported side effects of tipiracil include death, disease progression, and fatigue, based on 10,453 FDA adverse event reports from 2015 to 2025. 3.5% of reports found the drug to be ineffective.

Tipiracil side effects

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

1
Death29.5%3,081
2
Disease Progression17.2%1,793
3
Fatigue13.0%1,362
4
Nausea11.0%1,146
5
Diarrhoea9.5%994
6
Decreased Appetite6.4%665
7
Vomiting5.9%613
8
White Blood Cell Count Decreased4.6%480
9
Asthenia4.6%477
10
Drug Ineffective3.5%362
11
Anaemia3.4%357
12
Neutropenia3.1%328
13
Constipation3.1%323
14
Weight Decreased3.1%320
15
Off Label Use3.0%318

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

Report severity

78.8%Serious8,232 reports
27.1%Hospitalizations2,830 reports
40.1%Fatal4,193 reports

Seriousness is determined by the reporter, not by OpenClaim.

Tipiracil drug interactions

Other drugs that appear in adverse event reports alongside tipiracil. 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
Trifluridine95.7%10,003
2
Bevacizumab7.0%730
3
Regorafenib3.2%334
4
Irinotecan-hydrochloride2.4%253
5
Oxaliplatin2.4%246
6
Fluorouracil1.9%200
7
Capecitabine1.3%135
8
Panitumumab1.1%118
9
Levoleucovorin1.1%113
10
Cetuximab0.7%72
11
Leucovorin-calcium0.5%48
12
Fruquintinib0.4%42
13
Aflibercept0.3%33
14
Nivolumab0.3%32
15
Apixaban0.3%28

Taken alongside

1
Ondansetron12.4%1,294
2
Acetaminophen8.5%884
3
Oxycodone7.7%808
4
Amlodipine7.2%751
5
Prochlorperazine7.1%742
6
Gabapentin6.8%707
7
Omeprazole5.6%587
8
Lisinopril5.4%562
9
Metoprolol5.2%543
10
Aspirin5.1%529
11
Levothyroxine-sodium4.8%497
12
Ergocalciferol4.7%496
13
Pantoprazole-sodium4.7%495
14
Atorvastatin-calcium4.5%469
15
Loperamide-hydrochloride4.3%449

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 tipiracil side effects

41.0% of tipiracil adverse event reports involve female patients and 56.8% involve male patients. The largest age group is adult at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female41.0%
Male56.8%
Unknown2.2%

Age group

< 2<0.1%
2–110.0%
12–17<0.1%
18–6450.4%
65+49.5%

What is tipiracil used for

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

Abdominal NeoplasmAdenocarcinomaAdenocarcinoma Of AppendixAdenocarcinoma Of ColonAgranulocytosisAnaemiaAnaemia Of Chronic DiseaseAnal CancerAnorectal DisorderAppendix CancerAdenocarcinoid Tumour Of The AppendixAdenocarcinomaAdenocarcinoma GastricAdenocarcinoma MetastaticAdenocarcinoma Of Appendix

Showing 15 of 232 indications

Tipiracil brand names and reporting trend

Tipiracil is sold under the brand name Trifluridine; Tipiracil.

Brand names

Trifluridine; Tipiracil125

Quarterly reports (20152025)

2016202020242025

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

Taking tipiracil with another medication?

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