OpenClaim

Olutasidenib Side Effects

The most commonly reported side effects of olutasidenib include off label use, death, and hospitalisation, based on 240 FDA adverse event reports from 2023 to 2025. 2.5% of reports found the drug to be ineffective.

Olutasidenib side effects

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

1
Off Label Use26.7%64
2
Death12.5%30
3
Hospitalisation11.3%27
4
Fatigue10.8%26
5
Nausea10.8%26
6
Product Dose Omission Issue10.0%24
7
Product Prescribing Issue7.5%18
8
Constipation6.3%15
9
Transfusion5.0%12
10
Pneumonia4.2%10
11
Dyspnoea3.3%8
12
Product Use Issue3.3%8
13
Vomiting3.3%8
14
Diarrhoea2.9%7
15
Rash2.9%7

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

Report severity

47.9%Serious115 reports
34.2%Hospitalizations82 reports
13.8%Fatal33 reports

Seriousness is determined by the reporter, not by OpenClaim.

Olutasidenib drug interactions

Other drugs that appear in adverse event reports alongside olutasidenib. 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
Azacitidine1.3%3
2
Venetoclax1.3%3
3
Fostamatinib-disodium0.4%1
4
Allopurinol0.4%1
5
Ivosidenib0.4%1
6
Octreotide-acetate0.4%1
7
Cabozantinib0.4%1
8
Telotristat-etiprate0.4%1
9
Enasidenib-mesylate0.4%1
10
Belumosudil-mesylate0.4%1

Taken alongside

1
Ondansetron12.5%30
2
Acyclovir11.3%27
3
Pantoprazole-sodium8.3%20
4
Ergocalciferol6.7%16
5
Cyanocobalamin6.3%15
6
Acetaminophen5.8%14
7
Ivosidenib5.4%13
8
Prednisone5.0%12
9
Tramadol-hydrochloride4.6%11
10
Levofloxacin4.6%11
11
Amlodipine4.2%10
12
Levothyroxine-sodium3.8%9
13
Carvedilol3.8%9
14
Albuterol3.8%9
15
Oxycodone3.8%9

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 olutasidenib side effects

37.9% of olutasidenib adverse event reports involve female patients and 48.8% involve male patients. The largest age group is elderly at 65%. These figures reflect who reports side effects, not underlying risk.

Sex

Female37.9%
Male48.8%
Unknown13.3%

Age group

< 20.0%
2–110.0%
12–170.0%
18–6435.2%
65+64.8%

What is olutasidenib used for

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

5q Minus SyndromeAcute LeukaemiaAcute Lymphocytic LeukaemiaAcute Myeloid LeukaemiaAcute Myeloid Leukaemia (in Remission)Acute Myeloid Leukaemia RefractoryAcute Myelomonocytic LeukaemiaBrain Neoplasm MalignantChloromaCholangiocarcinomaChronic Lymphocytic LeukaemiaChronic Myeloid LeukaemiaChronic Myelomonocytic LeukaemiaChronic Obstructive Pulmonary DiseaseIsocitrate Dehydrogenase Gene Mutation

Showing 15 of 24 indications

Olutasidenib brand names and reporting trend

Olutasidenib is sold under the brand name Rezlidhia.

Brand names

Rezlidhia5

Quarterly reports (20232025)

202320242025

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

Taking olutasidenib with another medication?

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