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Calcifediol Side Effects

The most commonly reported side effects of calcifediol include death, off label use, and acute kidney injury, based on 2,243 FDA adverse event reports from 2004 to 2025. 2.4% of reports found the drug to be ineffective.

Calcifediol side effects

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

1
Death8.0%179
2
Off Label Use5.0%112
3
Acute Kidney Injury4.7%106
4
Drug Interaction4.4%99
5
Nausea2.9%66
6
Dyspnoea2.9%64
7
Covid-192.9%64
8
Pneumonia2.8%63
9
Anaemia2.8%63
10
Hypotension2.8%63
11
Diarrhoea2.6%58
12
Fall2.4%54
13
Vomiting2.4%54
14
Drug Ineffective2.4%54
15
Pyrexia2.4%54

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

Report severity

95.7%Serious2,146 reports
51.4%Hospitalizations1,153 reports
14.5%Fatal325 reports

Seriousness is determined by the reporter, not by OpenClaim.

Calcifediol drug interactions

Other drugs that appear in adverse event reports alongside calcifediol. 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
Furosemide4.6%103
2
Adalimumab3.8%86
3
Omeprazole3.7%83
4
Prednisone3.7%83
5
Dexamethasone3.7%83
6
Lenalidomide2.5%57
7
Cyclophosphamide2.4%54
8
Denosumab2.3%51
9
Daratumumab2.2%49
10
Teduglutide2.2%49
11
Rituximab2.1%48
12
Acetaminophen2.1%48
13
Bortezomib2.1%48
14
Metformin2.1%47
15
Pomalidomide2.1%46

Taken alongside

1
Omeprazole21.9%491
2
Atorvastatin-calcium15.7%352
3
Aspirin15.1%339
4
Furosemide14.5%326
5
Acetaminophen14.1%316
6
Levothyroxine-sodium12.5%280
7
Pantoprazole-sodium10.2%229
8
Bisoprolol-fumarate9.4%211
9
Folic-acid8.9%200
10
Amlodipine8.9%200
11
Lorazepam8.2%183
12
Allopurinol8.1%181
13
Prednisone8.0%179
14
Metformin7.2%161
15
Insulin6.7%150

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 calcifediol side effects

56.4% of calcifediol adverse event reports involve female patients and 35.8% involve male patients. The largest age group is elderly at 67%. These figures reflect who reports side effects, not underlying risk.

Sex

Female56.4%
Male35.8%
Unknown7.8%

Age group

< 20.4%
2–111.5%
12–170.6%
18–6430.9%
65+66.6%

What is calcifediol used for

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

Adverse EventAnaemiaAutoimmune ThyroiditisBlood CalciumBlood Calcium AbnormalBlood Calcium DecreasedBlood Calcium IncreasedBlood Parathyroid Hormone IncreasedBlood Potassium IncreasedBone DecalcificationBone DisorderBone LossBlood Calcium AbnormalBlood Parathyroid Hormone IncreasedBone Metabolism Disorder

Showing 15 of 108 indications

Calcifediol brand names and reporting trend

Calcifediol is sold under the brand name Rayaldee.

Brand names

Rayaldee1,636

Quarterly reports (20042025)

20042010201520202025

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

Taking calcifediol with another medication?

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