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Calcitriol side effects: what 20,153 FDA adverse event reports show

Calcitriol · 1,200 reaction terms · 89,019 drug–reaction co-reports · data 2026-09-14
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Drug class

Vitamin D3 Analog

FDA label (Established Pharmacologic Class)

Who reports

20,153 reports · 77% serious · 2,661 with death outcome · 56% female

openFDA FAERS counts, all years, deduplication not applied

Used for

Predialysis Patients Calcitriol Oral Solution is indicated in the management of secondary hyperparathyroidism and resultant metabolic bone disease in patients with moderate to severe chronic renal failure (Ccr 15 to 55 mL/min) not yet on dialysis. In children, the creatinine clearance value must be corrected for a surface area of 1.73 square meters.

FDA label, Indications and Usage

What it is

DESCRIPTION Calcitriol Oral Solution is a synthetic vitamin D analog which is active in the regulation of the absorption of calcium from the gastrointestinal tract and its utilization in the body. Calcitriol oral solution contains 1 mcg/mL of calcitriol.

FDA label, Description section

Boxed warning

None in the current label

How to read this page. FAERS is a spontaneous-reporting system: counts are not incidence rates and a signal is not proof of causation. Each reaction below is run through an automated screen — is the term in the FDA label (known), in the indications (the disease being treated), an administrative/coding term, or none of these (unlabeled)? That screen is mechanical text matching, not a causality assessment. The 30 hand-written Bradford Hill assessments are on the causality assessment page. Not medical advice.

Causality screen of the 40 strongest signals

Labeled adverse reaction 2Likely indication confounding 6Reporting / coding artifact 5Lab value / disease marker 4Not in label — unassessed 23
What the badges mean

Strongest disproportionality signals

Flagged terms (PRR ≥ 2, χ² ≥ 4, n ≥ 10), ranked by PRR; infinite PRRs (no comparator reports) excluded. The EBGM column is a second, shrinkage-based estimate (MGPS) with its 5th percentile EB05 and the BCPNN IC025; a pair flagged by PRR alone is marked PRR-only and should be read as fragile. The strata column recomputes the PRR on serious reports only and flags pairs whose reports are unusually skewed by sex or come mostly from consumers rather than clinicians. 1,160 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.

Show:
ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Appendicolith2742,782.0
2,215.4–3,493.5ROR 2,820.3 · χ² 204,410 / p <1e-300
712.4 EB05 644.4 · IC025 +8.1
3/3 methods agree
Not in label — unassessedserious n=274 · ♀ 7% (drug 56%) · 96% cliniciannot reported in cached trials
Antacid therapy802,103.5
1,434.9–3,083.8ROR 2,111.9 · χ² 54,412 / p <1e-300
591.8 EB05 490.7 · IC025 +6.7
3/3 methods agree
Reporting / coding artifactserious n=80 · ♀ 22% (drug 56%) · 100% cliniciannot reported in cached trials
Sleep disorder therapy1121,595.2
1,186.8–2,144.1ROR 1,604.1 · χ² 69,201 / p <1e-300
564.2 EB05 481.8 · IC025 +7.1
3/3 methods agree
Reporting / coding artifactserious n=112 · ♀ 0% (drug 56%) · 100% cliniciannot reported in cached trials
Zoonotic bacterial infection14797.6
396.7–1,603.4ROR 798.1 · χ² 5,825 / p <1e-300
278.4 EB05 176.3 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=14not reported in cached trials
Analgesic therapy124710.4
565.2–892.8ROR 714.8 · χ² 51,474 / p <1e-300
394.4 EB05 339.5 · IC025 +7.0
3/3 methods agree
Reporting / coding artifactserious n=124 · ♀ 14% (drug 56%) · 97% cliniciannot reported in cached trials
Drug therapy121636.3
507.4–798.0ROR 640.2 · χ² 46,972 / p <1e-300
370.0 EB05 317.9 · IC025 +6.9
3/3 methods agree
Reporting / coding artifactserious n=121 · ♀ 15% (drug 56%) · 100% cliniciannot reported in cached trials
Anticoagulant therapy80422.9
326.0–548.5ROR 424.6 · χ² 23,542 / p <1e-300
279.7 EB05 231.9 · IC025 +6.3
3/3 methods agree
Reporting / coding artifactserious n=80 · ♀ 22% (drug 56%) · 100% cliniciannot reported in cached trials
Recalled product473389.9
351.1–433.1ROR 399.3 · χ² 132,666 / p <1e-300
279.6 EB05 259.1 · IC025 +7.6
3/3 methods agree
Not in label — unassessedserious n=453 · ♀ 90% (drug 56%)not reported in cached trials
Malignant melanoma stage 049386.5
278.4–536.7ROR 387.5 · χ² 13,405 / p <1e-300
253.3 EB05 199.1 · IC025 +5.7
3/3 methods agree
Not in label — unassessedserious n=49 · ♀ 0% (drug 56%) · 100% cliniciannot reported in cached trials
Congenital hiatus hernia59378.1
280.6–509.5ROR 379.3 · χ² 15,939 / p <1e-300
253.8 EB05 204.0 · IC025 +5.9
3/3 methods agree
Not in label — unassessedserious n=59 · ♀ 0% (drug 56%) · 100% cliniciannot reported in cached trials
Heart failure with preserved ejection fraction68367.0
278.3–484.0ROR 368.3 · χ² 18,010 / p <1e-300
251.4 EB05 205.2 · IC025 +6.1
3/3 methods agree
Not in label — unassessedserious n=68 · ♀ 100% (drug 56%)not reported in cached trials
Milk-alkali syndrome135358.7
295.0–436.1ROR 361.1 · χ² 35,408 / p <1e-300
256.3 EB05 222.0 · IC025 +6.8
3/3 methods agree
Not in label — unassessedserious n=134 · 96% cliniciannot reported in cached trials
Central nervous system lupus42250.4
178.8–350.8ROR 250.9 · χ² 8,186 / p <1e-300
184.6 EB05 142.4 · IC025 +5.4
3/3 methods agree
Not in label — unassessedserious n=42 · ♀ 100% (drug 56%)not reported in cached trials
Body mass index abnormal43238.4
171.1–332.1ROR 238.9 · χ² 8,055 / p <1e-300
178.4 EB05 137.9 · IC025 +5.4
3/3 methods agree
Lab value / disease markerserious n=43 · ♀ 100% (drug 56%)not reported in cached trials
Vaginal flatulence50203.5
150.3–275.5ROR 204.0 · χ² 8,238 / p <1e-300
159.7 EB05 125.9 · IC025 +5.5
3/3 methods agree
Not in label — unassessedserious n=50 · ♀ 100% (drug 56%) · 100% cliniciannot reported in cached trials
Hypervitaminosis d19198.8
121.7–324.9ROR 199.0 · χ² 2,969 / p <1e-300
143.0 EB05 96.8 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=19not reported in cached trials
Hungry bone syndrome25165.4
108.4–252.3ROR 165.6 · χ² 3,378 / p <1e-300
128.8 EB05 91.7 · IC025 +4.6
3/3 methods agree
Not in label — unassessedserious n=25 · 100% cliniciannot reported in cached trials
Hyperparathyroidism secondary327154.4
137.6–173.3ROR 156.9 · χ² 43,184 / p <1e-300
133.3 EB05 121.6 · IC025 +6.6
3/3 methods agree
Likely indication confounding
term in indications
serious n=327not reported in cached trials
Hypercalciuria62149.6
114.6–195.2ROR 150.1 · χ² 7,857 / p <1e-300
125.7 EB05 101.6 · IC025 +5.6
3/3 methods agree
Labeled adverse reaction
exact term
serious n=57not reported in cached trials
Bacteroides infection32146.5
101.2–212.1ROR 146.7 · χ² 3,920 / p <1e-300
119.3 EB05 88.5 · IC025 +4.8
3/3 methods agree
Not in label — unassessedserious n=32 · ♀ 0% (drug 56%) · 100% cliniciannot reported in cached trials
Chronic kidney disease-mineral and bone disorder128140.5
116.9–169.0ROR 141.4 · χ² 15,474 / p <1e-300
121.5 EB05 104.8 · IC025 +6.1
3/3 methods agree
Not in label — unassessedserious n=128 · 100% cliniciannot reported in cached trials
Mycobacterium test positive23131.0
84.9–202.2ROR 131.2 · χ² 2,518 / p <1e-300
106.3 EB05 74.6 · IC025 +4.4
3/3 methods agree
Lab value / disease markerserious n=23 · 100% cliniciannot reported in cached trials
Microsporidia infection37120.8
86.0–169.8ROR 121.1 · χ² 3,827 / p <1e-300
102.6 EB05 77.7 · IC025 +4.9
3/3 methods agree
Not in label — unassessedserious n=37 · ♀ 0% (drug 56%)not reported in cached trials
Hyperphosphataemia202109.6
94.9–126.6ROR 110.7 · χ² 19,542 / p <1e-300
98.2 EB05 87.4 · IC025 +6.1
3/3 methods agree
Likely indication confounding
shares a disease stem with the indications wording
serious n=201 · ♀ 23% (drug 56%) · 91% cliniciannot reported in cached trials
Hypoparathyroidism6799.9
77.7–128.3ROR 100.2 · χ² 5,886 / p <1e-300
88.9 EB05 72.4 · IC025 +5.4
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious n=64 · ♀ 91% (drug 56%)not reported in cached trials
Blood phosphorus increased23899.5
87.2–113.6ROR 100.7 · χ² 21,075 / p <1e-300
90.2 EB05 81.0 · IC025 +6.0
3/3 methods agree
Lab value / disease markerserious n=230 · ♀ 21% (drug 56%) · 90% cliniciannot reported in cached trials
Shunt stenosis2497.3
64.0–147.8ROR 97.4 · χ² 2,002 / p <1e-300
83.2 EB05 58.9 · IC025 +4.3
3/3 methods agree
Not in label — unassessedserious n=24 · 100% cliniciannot reported in cached trials
Nephrogenic anaemia36487.8
79.0–97.7ROR 89.4 · χ² 28,707 / p <1e-300
80.6 EB05 73.9 · IC025 +6.0
3/3 methods agree
Not in label — unassessedserious n=364not reported in cached trials
Serositis4285.8
62.6–117.5ROR 86.0 · χ² 3,170 / p <1e-300
76.6 EB05 59.0 · IC025 +4.9
3/3 methods agree
Not in label — unassessedserious n=42 · ♀ 100% (drug 56%)not reported in cached trials
Nephrocalcinosis7974.4
59.2–93.4ROR 74.7 · χ² 5,265 / p <1e-300
68.3 EB05 56.6 · IC025 +5.2
3/3 methods agree
Labeled adverse reaction
exact term
serious n=78 · 100% cliniciannot reported in cached trials
Lung diffusion test decreased2570.0
46.7–105.0ROR 70.1 · χ² 1,529 / p <1e-300
62.6 EB05 44.6 · IC025 +4.2
3/3 methods agree
Not in label — unassessedserious n=25 · 100% cliniciannot reported in cached trials
Calciphylaxis11368.4
56.6–82.8ROR 68.8 · χ² 6,978 / p <1e-300
63.6 EB05 54.3 · IC025 +5.3
3/3 methods agree
Not in label — unassessedserious n=113 · ♀ 79% (drug 56%) · 95% cliniciannot reported in cached trials
Bronchopulmonary aspergillosis allergic5465.1
49.4–85.6ROR 65.2 · χ² 3,144 / p <1e-300
60.0 EB05 47.7 · IC025 +4.8
3/3 methods agree
Not in label — unassessedserious n=54 · ♀ 0% (drug 56%) · 100% cliniciannot reported in cached trials
Skin fibrosis2864.1
43.8–93.9ROR 64.2 · χ² 1,578 / p <1e-300
58.1 EB05 42.2 · IC025 +4.3
3/3 methods agree
Likely indication confounding
shares a disease stem with the indications wording
serious n=28not reported in cached trials
Mycobacterium marinum infection1863.7
39.5–102.4ROR 63.7 · χ² 987 / p 6e-217
56.6 EB05 37.9 · IC025 +3.7
3/3 methods agree
Not in label — unassessedserious n=18not reported in cached trials
Anti-erythropoietin antibody positive1460.6
35.3–103.8ROR 60.6 · χ² 719 / p 1e-158
53.3 EB05 33.8 · IC025 +3.4
3/3 methods agree
Lab value / disease markerserious n=14not reported in cached trials
Blood calcium abnormal8254.2
43.4–67.6ROR 54.4 · χ² 4,015 / p <1e-300
50.9 EB05 42.3 · IC025 +4.9
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious n=71 · ♀ 77% (drug 56%)not reported in cached trials
Shunt occlusion2349.4
32.5–75.1ROR 49.5 · χ² 996 / p 7e-219
45.6 EB05 32.0 · IC025 +3.9
3/3 methods agree
Not in label — unassessedserious n=23 · ♀ 35% (drug 56%) · 100% cliniciannot reported in cached trials
Blood parathyroid hormone increased11944.1
36.7–53.0ROR 44.4 · χ² 4,767 / p <1e-300
42.1 EB05 36.1 · IC025 +4.9
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious n=92not reported in cached trials
Arteriovenous fistula thrombosis1443.5
25.5–74.3ROR 43.5 · χ² 518 / p 7e-115
39.7 EB05 25.1 · IC025 +3.2
3/3 methods agree
Not in label — unassessedserious n=14not reported in cached trials

Trial evidence (ClinicalTrials.gov)

✓ Trial adverse-event data found on ClinicalTrials.gov

Largest completed trials with posted results that list Calcitriol as a study intervention. The right-hand column of the signal table shows whether each FAERS term was also recorded in these trials, with a real denominator (0 of 40 signal terms matched).

Caveats: trial populations, doses and follow-up differ from the reporting population; AE terms are sponsor-coded and matched here by wording; absence from a trial list means the term was not reported above the sponsor's frequency threshold, not that it cannot occur.

Most frequently reported reactions

By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.

ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Nausea1,4631.9
1.8–2.0ROR 2.0 · χ² 680 / p 4e-150
1.9 EB05 1.8 · IC025 +0.9Labeled adverse reaction
exact term
serious PRR 2.0not reported in cached trials
Diarrhoea (diarrhea)1,1911.9
1.8–2.0ROR 2.0 · χ² 547 / p 3e-121
1.9 EB05 1.8 · IC025 +0.8Not in label — unassessedserious PRR 1.7not reported in cached trials
Off label use (used outside approved label)1,1351.4
1.3–1.4ROR 1.4 · χ² 113 / p 1e-26
1.4 EB05 1.3 · IC025 +0.3Reporting / coding artifactserious PRR 1.5not reported in cached trials
Chronic kidney disease1,11315.3
14.5–16.2ROR 16.2 · χ² 14,712 / p <1e-300
15.1 EB05 14.4 · IC025 +3.8
3/3 methods agree
Not in label — unassessedserious PRR 11.4not reported in cached trials
Vomiting1,0932.4
2.3–2.6ROR 2.5 · χ² 936 / p 9e-206
2.4 EB05 2.3 · IC025 +1.2
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 2.1not reported in cached trials
Dyspnoea (shortness of breath)1,0742.0
1.9–2.1ROR 2.0 · χ² 531 / p 9e-118
2.0 EB05 1.9 · IC025 +0.9Not in label — unassessedserious PRR 1.7not reported in cached trials
Renal failure (kidney failure)1,0578.3
7.8–8.8ROR 8.7 · χ² 6,744 / p <1e-300
8.2 EB05 7.8 · IC025 +2.9
3/3 methods agree
Likely indication confounding
term in indications; also in warnings
serious PRR 6.2not reported in cached trials
Fatigue (tiredness)1,0311.4
1.3–1.5ROR 1.4 · χ² 112 / p 2e-26
1.4 EB05 1.3 · IC025 +0.4Not in label — unassessedserious PRR 1.4not reported in cached trials
Death8941.1
1.0–1.2ROR 1.1 · χ² 5 / p 0.010
1.1 EB05 1.0 · IC025 +0.0Outcome field, not a reactionserious PRR 0.8not reported in cached trials
Drug ineffective (drug did not work)8050.6
0.6–0.7ROR 0.6 · χ² 179 / p 5e-41
0.6 EB05 0.6 · IC025 -0.8
PRR-only: not supported by EBGM or IC
Reporting / coding artifactserious PRR 1.0not reported in cached trials
Abdominal pain7743.5
3.2–3.7ROR 3.6 · χ² 1,370 / p 4e-300
3.5 EB05 3.3 · IC025 +1.7
3/3 methods agree
Labeled adverse reaction
exact term
serious PRR 3.2not reported in cached trials
Headache7641.3
1.2–1.4ROR 1.3 · χ² 45 / p 1e-11
1.3 EB05 1.2 · IC025 +0.2Labeled adverse reaction
exact term
serious PRR 1.4not reported in cached trials
Asthenia (weakness)7542.1
1.9–2.2ROR 2.1 · χ² 433 / p 2e-96
2.1 EB05 2.0 · IC025 +0.9Not in label — unassessedserious PRR 1.9not reported in cached trials

Unlabeled candidate signals

These flagged terms were not found in the FDA label text and do not match an artifact pattern. They are the pairs that would merit a structured assessment (temporality, dose-response, biological plausibility, consistency across databases, trial or cohort evidence). The screen has not done that; string-matching misses label wording, and a strong PRR can still be stimulated reporting, co-medication, or the disease itself.

Want to assess one of these properly? The runbook describes the Bradford Hill / trial-evidence workflow used on the assessment page, and handoff_top1000_signals.csv lists the strongest unassessed pairs across all drugs.

Common questions

What are the most reported side effects of Calcitriol?

In FDA FAERS, the most frequently co-reported reaction terms for Calcitriol are nausea, diarrhoea, chronic kidney disease, vomiting, dyspnoea, renal failure. These are report counts, not rates: FAERS has no denominator, reporting is voluntary and uneven, and a term can be reported because of the illness being treated rather than the drug.

Does Calcitriol have an FDA boxed warning?

No. The FDA label retrieved for Calcitriol has no boxed warning; see the label's Warnings and Precautions for the recognised risks.

Do FAERS signals prove that Calcitriol causes these side effects?

No. A disproportionality signal (PRR, ROR) means a reaction is reported more often with this drug than with others in the database. That can reflect a real effect, but also the disease being treated, stimulated reporting after news or litigation, co-medications, or how reports are coded. Causality needs temporality, dose-response, biological plausibility, consistency across data sources and, ideally, trial or cohort evidence. This page screens each term against the FDA label and ClinicalTrials.gov results; it does not establish causation.

Sources & methods

Page generated 2026-10-08. Label and PubChem text are retrieved automatically and may lag the current label; always check the current prescribing information. OpenPV is a beta research tool of the Open Source Medicine Foundation.