OpenClaim

Valganciclovir Side Effects

The most commonly reported side effects of valganciclovir include off label use, cytomegalovirus infection, and death, based on 5,893 FDA adverse event reports from 2004 to 2025. 2.0% of reports found the drug to be ineffective.

Valganciclovir side effects

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

1
Off Label Use11.8%697
2
Cytomegalovirus Infection6.6%390
3
Death6.0%352
4
Diarrhoea4.4%261
5
Pyrexia3.8%224
6
Neutropenia3.7%217
7
No Adverse Event3.6%211
8
Intentional Product Use Issue3.5%205
9
Leukopenia3.3%196
10
Acute Kidney Injury3.3%192
11
Anaemia3.0%175
12
Pneumonia3.0%174
13
Nausea2.9%170
14
Vomiting2.4%140
15
Fatigue2.3%137

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

Report severity

88.1%Serious5,191 reports
52.5%Hospitalizations3,092 reports
16.4%Fatal967 reports

Seriousness is determined by the reporter, not by OpenClaim.

Valganciclovir drug interactions

Other drugs that appear in adverse event reports alongside valganciclovir. 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
Mycophenolate23.4%1,380
2
Tacrolimus17.3%1,017
3
Sulfamethoxazole6.5%381
4
Trimethoprim6.4%377
5
Prednisone6.2%364
6
Cyclosporine4.9%287
7
Sirolimus2.3%136
8
Prednisolone2.2%130
9
Basiliximab2.1%122
10
Esomeprazole2.0%117
11
Ganciclovir1.9%114
12
Pantoprazole-sodium1.9%113
13
Methylprednisolone1.7%101
14
Eculizumab1.6%94
15
Belatacept1.6%92

Taken alongside

1
Prednisone27.3%1,611
2
Sulfamethoxazole25.2%1,487
3
Trimethoprim24.4%1,440
4
Mycophenolate21.0%1,236
5
Tacrolimus20.8%1,223
6
Acetaminophen11.7%691
7
Aspirin11.6%685
8
Insulin11.6%681
9
Amlodipine10.9%642
10
Pantoprazole-sodium10.6%626
11
Furosemide9.1%539
12
Omeprazole9.0%533
13
Metoprolol8.8%518
14
Ergocalciferol7.9%467
15
Nystatin6.7%392

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 valganciclovir side effects

38.8% of valganciclovir adverse event reports involve female patients and 54.3% involve male patients. The largest age group is adult at 69%. These figures reflect who reports side effects, not underlying risk.

Sex

Female38.8%
Male54.3%
Unknown6.9%

Age group

< 22.2%
2–113.2%
12–172.0%
18–6469.2%
65+23.3%

What is valganciclovir used for

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

Acquired Immunodeficiency SyndromeAcute Graft Versus Host DiseaseAcute Myeloid LeukaemiaAdverse EventAmenorrhoeaAnalgesic TherapyAnorectal DisorderAnti-infective TherapyAntibiotic ProphylaxisAntibiotic TherapyAntifungal ProphylaxisAntiviral Drug LevelAntiviral ProphylaxisAntiviral TreatmentAplastic Anaemia

Showing 15 of 233 indications

Valganciclovir brand names and reporting trend

Valganciclovir is sold under the brand name Valganciclovir Hydrochloride.

Brand names

Valganciclovir Hydrochloride140

Quarterly reports (20042025)

20052010201520202025

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

Taking valganciclovir with another medication?

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