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Nystatin Side Effects

The most commonly reported side effects of nystatin include nausea, diarrhoea, and fatigue, based on 30,905 FDA adverse event reports from 2004 to 2025. 4.1% of reports found the drug to be ineffective.

Nystatin side effects

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

1
Nausea6.2%1,912
2
Diarrhoea5.9%1,831
3
Fatigue5.9%1,830
4
Pneumonia5.2%1,606
5
Off Label Use5.0%1,552
6
Dyspnoea4.7%1,449
7
Vomiting4.2%1,290
8
Drug Ineffective4.1%1,263
9
Death4.0%1,236
10
Pain3.8%1,163
11
Pyrexia3.6%1,102
12
Acute Kidney Injury3.5%1,078
13
Headache3.3%1,026
14
Chronic Kidney Disease3.0%942
15
Rash3.0%937

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

Report severity

79.0%Serious24,429 reports
46.7%Hospitalizations14,447 reports
14.2%Fatal4,381 reports

Seriousness is determined by the reporter, not by OpenClaim.

Nystatin drug interactions

Other drugs that appear in adverse event reports alongside nystatin. 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
Lenalidomide5.3%1,623
2
Prednisone4.7%1,438
3
Tacrolimus3.7%1,132
4
Mycophenolate3.2%999
5
Omeprazole3.1%966
6
Cyclophosphamide2.9%891
7
Esomeprazole2.8%867
8
Pantoprazole-sodium2.7%839
9
Rituximab2.6%809
10
Doxorubicin-hydrochloride2.2%687
11
Vincristine-sulfate2.2%685
12
Sodium-oxybate2.0%620
13
Methotrexate2.0%613
14
Dexamethasone1.9%584
15
Methylprednisolone1.9%573

Taken alongside

1
Acetaminophen32.8%10,138
2
Albuterol21.9%6,774
3
Ondansetron20.7%6,404
4
Furosemide19.9%6,152
5
Omeprazole19.2%5,944
6
Aspirin18.5%5,712
7
Ergocalciferol17.9%5,547
8
Prednisone17.1%5,286
9
Levothyroxine-sodium15.4%4,751
10
Pantoprazole-sodium14.9%4,609
11
Gabapentin14.8%4,571
12
Fluticasone14.5%4,488
13
Oxycodone12.9%3,987
14
Amlodipine12.6%3,896
15
Dexamethasone12.5%3,875

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 nystatin side effects

56.9% of nystatin adverse event reports involve female patients and 35.7% involve male patients. The largest age group is adult at 50%. These figures reflect who reports side effects, not underlying risk.

Sex

Female56.9%
Male35.7%
Unknown7.4%

Age group

< 22.0%
2–113.5%
12–172.4%
18–6450.1%
65+41.9%

What is nystatin used for

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

Abdominal DiscomfortAbdominal DistensionAbdominal Fat ApronAbdominal Pain UpperAccidental ExposureAccidental Exposure To ProductAccidental Exposure To Product By ChildAcidosisAcinetobacter InfectionAcneAcute AbdomenAcute Lymphocytic LeukaemiaAdjuvant TherapyAdverse EventAnal Pruritus

Showing 15 of 701 indications

Nystatin brand names and reporting trend

Nystatin is sold under the brand name Mytrex F.

Brand names

Mytrex F28,047

Quarterly reports (20042025)

20052010201520202025

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

Taking nystatin with another medication?

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