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Cyclosporine side effects: what 110,597 FDA adverse event reports show

Cyclosporine · Cyclosporine Modified · 1,288 reaction terms · 429,525 drug–reaction co-reports · data 2026-09-14
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Drug class

Calcineurin Inhibitor Immunosuppressant

FDA label (Established Pharmacologic Class) · compare the class

Brand names

Cyclosporine Modified

openFDA label

Who reports

110,597 reports · 68% serious · 14,502 with death outcome · 61% female

openFDA FAERS counts, all years, deduplication not applied

Used for

Kidney, Liver, and Heart Transplantation Cyclosporine capsules, USP MODIFIED are indicated for the prophylaxis of organ rejection in kidney, liver, and heart allogeneic transplants. Cyclosporine capsules, USP MODIFIED have been used in combination with azathioprine and corticosteroids.

FDA label, Indications and Usage

What it is

Cyclosporin A is a cyclic nonribosomal peptide of eleven amino acids; an immunosuppressant drug widely used in post-allogeneic organ transplant to reduce the activity of the patient's immune system, and therefore the risk of organ rejection.

PubChem CID 5284373 (ChEBI)

Boxed warning

Only physicians experienced in management of systemic immunosuppressive therapy for the indicated disease should prescribe cyclosporine capsules, USP MODIFIED. At doses used in solid organ transplantation, only physi.

FDA 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 1Labeled (related wording) 15Likely indication confounding 1Reporting / coding artifact 1Lab value / disease marker 3Not in label — unassessed 19
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, for the 300 most-reported drugs, adjusted for age band), and flags pairs whose reports are unusually skewed by sex or come mostly from consumers. Each row also shows the PRR against the other drugs of the same FDA class, which removes most confounding by the condition being treated, and a calibrated p-value: on validation, known non-causes average an ROR of about 2, so significance is judged against that empirical null (✓ = p < 0.05 after calibration). 1,248 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
Lymphoid tissue hypoplasia93320.5
229.2–448.1ROR 320.7 · calibrated p 2e-11 ✓
115.6 EB05 97.2 · IC025 +5.8
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=93 · ♀ 0% (drug 61%)no trial arm names this drug
Thymus hypoplasia92219.5
162.3–296.7ROR 219.7 · calibrated p 4e-10 ✓
99.2 EB05 83.3 · IC025 +5.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=92 · ♀ 0% (drug 61%)no trial arm names this drug
Cytomegalovirus antigen positive84157.9
118.1–211.1ROR 158.0 · calibrated p 6e-9 ✓
84.3 EB05 70.2 · IC025 +5.5
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Lab value / disease markerserious n=84 · ♀ 0% (drug 61%) · 100% clinicianno trial arm names this drug
Red blood cell sedimentation rate107116.4
91.4–148.2ROR 116.5 · calibrated p 5e-8 ✓
71.1 EB05 60.5 · IC025 +5.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Lab value / disease markerserious n=107 · ♀ 100% (drug 61%) · 100% clinicianno trial arm names this drug
Acute graft versus host disease in intestine508107.8
96.6–120.2ROR 108.3 · calibrated p 7e-8 ✓
68.4 EB05 63.6 · IC025 +5.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=507 · ♀ 32% (drug 61%) · 100% clinicianno trial arm names this drug
Cystitis viral11683.0
66.7–103.3ROR 83.1 · calibrated p 6e-7 ✓
57.2 EB05 49.0 · IC025 +5.2
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=113 · ♀ 0% (drug 61%) · 100% clinicianno trial arm names this drug
Viral haemorrhagic cystitis20577.5
65.9–91.2ROR 77.7 · calibrated p 8e-7 ✓
54.8 EB05 48.7 · IC025 +5.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=205 · 100% clinicianno trial arm names this drug
Encephalitis cytomegalovirus12577.0
62.5–94.9ROR 77.1 · calibrated p 1e-6 ✓
54.3 EB05 46.8 · IC025 +5.2
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=125 · ♀ 0% (drug 61%) · 100% clinicianno trial arm names this drug
Granuloma skin23474.6
64.1–86.8ROR 74.7 · calibrated p 1e-6 ✓
53.3 EB05 47.8 · IC025 +5.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=234 · ♀ 100% (drug 61%)no trial arm names this drug
Epstein-barr virus infection reactivation34771.6
63.3–81.0ROR 71.8 · calibrated p 1e-6 ✓
51.8 EB05 47.4 · IC025 +5.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=346 · 100% clinicianno trial arm names this drug
Smooth muscle cell neoplasm10564.3
51.5–80.2ROR 64.3 · calibrated p 3e-6 ✓
47.6 EB05 40.5 · IC025 +5.0
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=105 · ♀ 100% (drug 61%) · 100% clinicianno trial arm names this drug
Product dropper issue20264.3
54.8–75.4ROR 64.4 · calibrated p 3e-6 ✓
47.8 EB05 42.5 · IC025 +5.2
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Reporting / coding artifact♀ 84% (drug 61%) · 100% consumerno trial arm names this drug
Bk virus infection82862.2
57.5–67.2ROR 62.6 · calibrated p 3e-6 ✓
46.8 EB05 44.2 · IC025 +5.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Labeled adverse reaction
exact term
serious n=819 · ♀ 28% (drug 61%) · 97% clinicianno trial arm names this drug
Scleral hyperaemia16861.2
51.4–72.8ROR 61.3 · calibrated p 4e-6 ✓
46.1 EB05 40.5 · IC025 +5.1
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessed♀ 100% (drug 61%)no trial arm names this drug
Kaposi's sarcoma10951.5
41.6–63.6ROR 51.5 · calibrated p 1e-5 ✓
40.3 EB05 34.3 · IC025 +4.8
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=109 · ♀ 0% (drug 61%) · 100% clinicianno trial arm names this drug
Chronic allograft nephropathy16750.9
42.9–60.3ROR 50.9 · calibrated p 1e-5 ✓
40.0 EB05 35.2 · IC025 +4.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=165 · ♀ 38% (drug 61%) · 100% clinicianno trial arm names this drug
Lymphocele14050.1
41.6–60.4ROR 50.2 · calibrated p 2e-5 ✓
39.5 EB05 34.3 · IC025 +4.8
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=140 · ♀ 41% (drug 61%) · 100% clinicianno trial arm names this drug
Epstein-barr viraemia21546.6
40.2–54.1ROR 46.7 · calibrated p 2e-5 ✓
37.4 EB05 33.4 · IC025 +4.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=214 · ♀ 30% (drug 61%) · 100% clinicianno trial arm names this drug
Disseminated aspergillosis9044.9
35.7–56.5ROR 44.9 · calibrated p 3e-5 ✓
36.1 EB05 30.3 · IC025 +4.6
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=90 · ♀ 0% (drug 61%)no trial arm names this drug
Blood parathyroid hormone decreased28043.7
38.4–49.8ROR 43.8 · calibrated p 3e-5 ✓
35.5 EB05 32.2 · IC025 +4.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Lab value / disease markerserious n=280 · ♀ 100% (drug 61%)no trial arm names this drug
Adenovirus infection51441.3
37.5–45.4ROR 41.5 · calibrated p 4e-5 ✓
33.9 EB05 31.5 · IC025 +4.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=506 · 100% clinicianno trial arm names this drug
Heart transplant rejection18239.8
34.0–46.8ROR 39.9 · calibrated p 6e-5 ✓
32.9 EB05 29.1 · IC025 +4.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Likely indication confounding
term in indications; also in warnings
serious n=182 · ♀ 37% (drug 61%) · 100% clinicianno trial arm names this drug
Aspergillosis22939.5
34.2–45.5ROR 39.6 · calibrated p 6e-5 ✓
32.7 EB05 29.3 · IC025 +4.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=229 · ♀ 37% (drug 61%) · 100% clinicianno trial arm names this drug
Foreign body sensation in eyes1,06839.0
36.5–41.7ROR 39.4 · calibrated p 6e-5 ✓
32.4 EB05 30.8 · IC025 +4.9
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessed♀ 87% (drug 61%) · 81% consumerno trial arm names this drug
Paroxysmal nocturnal haemoglobinuria7838.6
30.2–49.3ROR 38.6 · calibrated p 8e-5 ✓
31.9 EB05 26.4 · IC025 +4.4
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: only this drug
Not in label — unassessedserious n=78 · ♀ 100% (drug 61%) · 100% clinicianno trial arm names this drug

Clinical concept groups

MedDRA splits one clinical problem across several terms (e.g. "neutropenia", "neutrophil count decreased", "agranulocytosis"), which dilutes term-level signals. These rows count reports with any term in a concept group (an exact union, not a sum), compared with all other drugs. Groups are hand-built and listed in the methods.

ConceptReportsPRR 95% CIReading
Opportunistic infection4,4666.46.2–6.6signal
Kidney injury7,9053.33.3–3.4signal
Rhabdomyolysis / myopathy1,1392.72.5–2.8signal
Thrombocytopenia2,8652.52.4–2.6signal
Interstitial lung disease1,2452.52.3–2.6signal
Serious infection9,3252.32.3–2.4signal
Liver injury3,6282.32.2–2.4signal
Anaemia3,5712.32.2–2.3signal
Neutropenia / agranulocytosis2,8132.22.1–2.2signal
Anaphylaxis / angioedema1,1001.71.6–1.8raised
Tendon disorder3311.71.5–1.8raised
Hyponatraemia5841.41.3–1.5raised
Severe cutaneous reaction4811.21.1–1.3raised
Pancreatitis5111.21.1–1.3raised
Osteonecrosis3311.11.0–1.2no difference
Seizure1,0991.11.0–1.1raised

Trial evidence (ClinicalTrials.gov)

ClinicalTrials.gov returned results-bearing trials mentioning Cyclosporine only as a background or rescue medication (NCT01646385, NCT02618577); no trial listing it as the tested intervention was cached, so no trial cross-check is shown.

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
Drug ineffective (drug did not work)12,9181.9
1.8–1.9ROR 2.0 · calibrated p 0.935
1.9 EB05 1.8 · IC025 +0.9
vs other Calcineurin Inhibitor Immunosuppressants: PRR 1,027.1 (866.8–1,217.1)
Reporting / coding artifactage-adj. PRR 2.2 · serious PRR 3.0no trial arm names this drug
Off label use (used outside approved label)9,5662.1
2.1–2.1ROR 2.2 · calibrated p 0.948
2.1 EB05 2.1 · IC025 +1.0
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: PRR 376.1 (333.6–424.1)
Reporting / coding artifactage-adj. PRR 2.1 · serious PRR 2.7no trial arm names this drug
Eye irritation7,98631.6
30.9–32.3ROR 34.0 · calibrated p 1e-4 ✓
27.2 EB05 26.7 · IC025 +4.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: PRR 1,890.8 (1,411.0–2,533.8)
Not in label — unassessedage-adj. PRR 22.2 · serious PRR 5.7 · ♀ 84% (drug 61%) · 84% consumerno trial arm names this drug
Product use in unapproved indication4,3203.4
3.3–3.5ROR 3.5 · calibrated p 0.486
3.4 EB05 3.3 · IC025 +1.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: PRR 354.1 (297.5–421.3)
Reporting / coding artifactage-adj. PRR 3.6 · serious PRR 5.6no trial arm names this drug
Eye pain3,89114.3
13.9–14.8ROR 14.8 · calibrated p 0.007 ✓
13.4 EB05 13.0 · IC025 +3.7
3/3 methods agree
vs other Calcineurin Inhibitor Immunosuppressants: PRR 6,909.5 (3,102.5–15,387.7)
Labeled adverse reaction
exact term
age-adj. PRR 10.7 · serious PRR 2.9 · ♀ 84% (drug 61%) · 81% consumerno trial arm names this drug
Nausea3,7540.9
0.9–0.9ROR 0.9 · calibrated p 0.242
0.9 EB05 0.9 · IC025 -0.2
PRR-only: not supported by EBGM or IC
vs other Calcineurin Inhibitor Immunosuppressants: PRR 63.2 (58.1–68.7)
Labeled adverse reaction
exact term
age-adj. PRR 0.9 · serious PRR 1.1no trial arm names this drug
Diarrhoea (diarrhea)3,7221.1
1.1–1.1ROR 1.1 · calibrated p 0.373
1.1 EB05 1.1 · IC025 +0.1
vs other Calcineurin Inhibitor Immunosuppressants: PRR 74.0 (67.6–80.9)
Labeled adverse reaction
exact term
age-adj. PRR 1.2 · serious PRR 1.4no trial arm names this drug
Headache3,7171.1
1.1–1.2ROR 1.1 · calibrated p 0.393
1.1 EB05 1.1 · IC025 +0.1
vs other Calcineurin Inhibitor Immunosuppressants: PRR 57.9 (53.4–62.8)
Labeled adverse reaction
exact term
age-adj. PRR 1.1 · serious PRR 1.3no trial arm names this drug
Fatigue (tiredness)3,4890.9
0.8–0.9ROR 0.8 · calibrated p 0.210
0.9 EB05 0.8 · IC025 -0.3
PRR-only: not supported by EBGM or IC
vs other Calcineurin Inhibitor Immunosuppressants: PRR 70.8 (64.7–77.5)
Labeled adverse reaction
exact term
age-adj. PRR 0.9 · serious PRR 1.0no trial arm names this drug
Pneumonia (lung infection)3,3942.0
1.9–2.1ROR 2.0 · calibrated p 0.962
2.0 EB05 1.9 · IC025 +0.9
vs other Calcineurin Inhibitor Immunosuppressants: PRR 306.5 (255.2–368.0)
Labeled — boxed warning
synonym match
age-adj. PRR 2.2 · serious PRR 1.7no trial arm names this drug
Pain3,2431.0
1.0–1.0ROR 1.0 · calibrated p 0.306
1.0 EB05 1.0 · IC025 -0.1
PRR-only: not supported by EBGM or IC
vs other Calcineurin Inhibitor Immunosuppressants: PRR 171.1 (148.5–197.1)
Labeled adverse reaction
exact term
age-adj. PRR 1.2 · serious PRR 1.0no trial arm names this drug
Condition aggravated3,2282.0
2.0–2.1ROR 2.1 · calibrated p 0.981
2.0 EB05 2.0 · IC025 +1.0
vs other Calcineurin Inhibitor Immunosuppressants: PRR 648.9 (494.8–851.0)
Reporting / coding artifactage-adj. PRR 2.1 · serious PRR 2.2no trial arm names this drug
Rash2,7191.2
1.1–1.2ROR 1.2 · calibrated p 0.437
1.2 EB05 1.2 · IC025 +0.2
vs other Calcineurin Inhibitor Immunosuppressants: PRR 157.4 (135.7–182.7)
Labeled adverse reaction
exact term
age-adj. PRR 1.3 · serious PRR 1.7no trial arm names this drug

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.

✓ A hand-written Bradford Hill causality assessment exists for this drug: Cyclosporine ↔ Nephrotoxicity.

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 Cyclosporine?

In FDA FAERS, the most frequently co-reported reaction terms for Cyclosporine are eye irritation, pyrexia, eye pain, nausea, diarrhoea, headache. 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 Cyclosporine have an FDA boxed warning?

Yes. The current FDA label carries a boxed warning: Only physicians experienced in management of systemic immunosuppressive therapy for the indicated disease should prescribe cyclosporine capsules, USP MODIFIED. At doses used in solid organ transplantation, only physi.

Do FAERS signals prove that Cyclosporine 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 2026-10-14. 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.