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Tacrolimus Side Effects

The most commonly reported side effects of tacrolimus include off label use, product use in unapproved indication, and acute kidney injury, based on 159,918 FDA adverse event reports from 2004 to 2025. 5.9% of reports found the drug to be ineffective.

Tacrolimus side effects

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

1
Off Label Use9.4%15,048
2
Drug Ineffective5.9%9,505
3
Product Use In Unapproved Indication3.9%6,312
4
Acute Kidney Injury3.7%5,889
5
Drug Interaction3.7%5,874
6
Diarrhoea3.2%5,188
7
Transplant Rejection2.8%4,477
8
Pyrexia2.6%4,234
9
Death2.6%4,177
10
Cytomegalovirus Infection2.5%4,047
11
Pneumonia2.5%4,010
12
Covid-192.5%3,928
13
Toxicity To Various Agents2.3%3,698
14
Renal Impairment2.0%3,216
15
Nausea1.8%2,942

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

Report severity

88.3%Serious141,256 reports
39.4%Hospitalizations62,951 reports
16.2%Fatal25,881 reports

Seriousness is determined by the reporter, not by OpenClaim.

Tacrolimus drug interactions

Other drugs that appear in adverse event reports alongside tacrolimus. 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
Mycophenolate29.3%46,874
2
Prednisone15.3%24,546
3
Prednisolone9.9%15,846
4
Methylprednisolone7.7%12,333
5
Cyclosporine4.7%7,585
6
Rituximab4.0%6,318
7
Basiliximab3.9%6,234
8
Cyclophosphamide3.5%5,523
9
Methotrexate3.4%5,440
10
Azathioprine3.1%4,926
11
Sirolimus3.0%4,855
12
Fludarabine-phosphate2.7%4,261
13
Dupilumab2.5%3,921
14
Ganciclovir2.2%3,570
15
Everolimus1.9%3,038

Taken alongside

1
Mycophenolate13.5%21,648
2
Prednisone13.4%21,398
3
Prednisolone5.9%9,374
4
Sulfamethoxazole5.0%8,043
5
Methylprednisolone5.0%7,926
6
Aspirin4.7%7,561
7
Amlodipine4.5%7,196
8
Ganciclovir4.5%7,124
9
Trimethoprim4.1%6,592
10
Insulin3.8%6,008
11
Omeprazole3.7%5,962
12
Furosemide3.7%5,844
13
Acyclovir3.5%5,659
14
Acetaminophen3.5%5,633
15
Ergocalciferol3.3%5,267

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 tacrolimus side effects

39.1% of tacrolimus adverse event reports involve female patients and 48.6% involve male patients. The largest age group is adult at 67%. These figures reflect who reports side effects, not underlying risk.

Sex

Female39.1%
Male48.6%
Unknown12.3%

Age group

< 22.3%
2–116.4%
12–174.6%
18–6467.0%
65+19.6%

What is tacrolimus used for

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

Abdominal DiscomfortAbdominal PainAbdominal Wall OperationAbo IncompatibilityAbo IncompatibilityAbortion SpontaneousAccidentAccidental Exposure To ProductAccidental OverdoseAcneAcquired Amegakaryocytic ThrombocytopeniaAcquired HaemophiliaAcrodermatitisAcrodermatitis EnteropathicaActinic Keratosis

Showing 15 of 1,912 indications

Tacrolimus brand names and reporting trend

Tacrolimus is sold under the brand name Prograf.

Brand names

Prograf167,554

Quarterly reports (20042025)

20052010201520202025

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

Taking tacrolimus with another medication?

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