Insulin Glargine and Lixisenatide side effects: what 3,551 FDA adverse event reports show
Drug class
Insulin Analog
Label matched
Insulin Glargine (Toujeo)
Who reports
3,551 reports · 18% serious · 41 with death outcome · 56% female
Used for
TOUJEO is indicated to improve glycemic control in adults and pediatric patients 6 years of age and older with diabetes mellitus. TOUJEO is a long-acting human insulin analog indicated to improve glycemic control in adults and pediatric patients 6 years and older with diabetes mellitus. ( 1 ) Limitations of Use : Not recommended for the treatment of diabetic ketoacidosis.
What it is
Insulin glargine is a long-acting human insulin analog produced by recombinant DNA technology utilizing a nonpathogenic laboratory strain of Escherichia coli (K12) as the production organism. .
Boxed warning
None in the current label
Causality screen of the 38 strongest signals
What the badges mean
- Labeled adverse reaction The exact term appears in the label's warnings or adverse-reactions sections: a known, expected effect. The FAERS signal confirms the label rather than discovering anything.
- Labeled (related wording) The label describes this effect under different wording (e.g. 'neutropenia' for 'neutrophil count decreased'). Treated as known.
- Likely indication confounding The term appears in the label's indications: reports probably describe the disease being treated (or its progression), not a drug effect. Classic confounding by indication.
- Reporting / coding artifact An administrative, monitoring or exposure term (product issue, off-label use, 'test normal', overdose...). Not a biological reaction; a high PRR here reflects how reports are coded.
- Lab value / disease marker A laboratory result, investigation or disease-activity marker (antibody positive, CRP abnormal, swollen joint count) not described in the label. These usually mirror the monitored disease or testing protocol rather than a drug effect; not screened further.
- Not in label — unassessed Not found in the label text, not an artifact pattern. This is a genuine candidate for a formal causality assessment (Bradford Hill / WHO-UMC); it has NOT had one here.
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. 30 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.
| Reaction | Reports | PRR 95% CI · ROR · χ²/p | EBGM EB05 · IC025 | Label screen | Serious-only & strata | Trial cross-check |
|---|---|---|---|---|---|---|
| Exposure via skin contact | 186 | 49.0 42.5–56.3ROR 51.6 · χ² 8,626 / p <1e-300 | 48.3 EB05 42.8 · IC025 +5.2 3/3 methods agree | Reporting / coding artifact | serious n=2 · 91% consumer | no trial data cached |
| Product storage error | 400 | 27.4 25.0–30.1ROR 30.8 · χ² 10,148 / p <1e-300 | 27.3 EB05 25.1 · IC025 +4.6 3/3 methods agree | Reporting / coding artifact | serious PRR 35.2 · 80% consumer | no trial data cached |
| Blood glucose abnormal | 72 | 23.0 18.3–29.0ROR 23.5 · χ² 1,491 / p <1e-300 | 22.8 EB05 18.7 · IC025 +3.9 3/3 methods agree | Lab value / disease marker | serious PRR 19.7 · 74% consumer | no trial data cached |
| Blood glucose fluctuation | 37 | 19.9 14.5–27.5ROR 20.1 · χ² 645 / p 2e-142 | 19.7 EB05 14.9 · IC025 +3.4 3/3 methods agree | Lab value / disease marker | serious n=6 · 78% consumer | no trial data cached |
| Accidental exposure to product | 323 | 19.1 17.3–21.2ROR 21.0 · χ² 5,545 / p <1e-300 | 19.1 EB05 17.4 · IC025 +4.0 3/3 methods agree | Reporting / coding artifact | serious PRR 8.5 · 91% consumer | no trial data cached |
| Product dispensing error | 66 | 18.0 14.1–22.8ROR 18.3 · χ² 1,038 / p 4e-228 | 17.8 EB05 14.5 · IC025 +3.6 3/3 methods agree | Reporting / coding artifact | serious n=4 · 86% consumer | no trial data cached |
| Glycosylated haemoglobin increased | 73 | 17.2 13.7–21.5ROR 17.5 · χ² 1,092 / p 7e-240 | 17.0 EB05 14.0 · IC025 +3.6 3/3 methods agree | Lab value / disease marker | serious PRR 28.9 | no trial data cached |
| Blood glucose increased | 460 | 14.4 13.2–15.7ROR 16.4 · χ² 5,755 / p <1e-300 | 14.3 EB05 13.3 · IC025 +3.7 3/3 methods agree | Labeled (related wording) related wording | serious PRR 16.1 · 71% consumer | no trial data cached |
| Diabetes mellitus inadequate control | 38 | 12.7 9.2–17.4ROR 12.8 · χ² 397 / p 1e-88 | 12.3 EB05 9.2 · IC025 +2.9 3/3 methods agree | Labeled (related wording) related wording | serious PRR 47.6 | no trial data cached |
| Device mechanical issue | 26 | 11.9 8.1–17.5ROR 12.0 · χ² 249 / p 2e-56 | 11.3 EB05 7.7 · IC025 +2.6 3/3 methods agree | Reporting / coding artifact | serious n=5 | no trial data cached |
| Blood glucose decreased | 97 | 11.9 9.8–14.5ROR 12.2 · χ² 958 / p 1e-210 | 11.7 EB05 9.9 · IC025 +3.2 3/3 methods agree | Labeled (related wording) related wording | serious PRR 15.3 · 81% consumer | no trial data cached |
| Wrong technique in device usage process | 77 | 10.0 8.0–12.4ROR 10.2 · χ² 612 / p 2e-135 | 9.7 EB05 7.9 · IC025 +2.9 3/3 methods agree | Reporting / coding artifact | serious n=2 · 94% consumer | no trial data cached |
| Injury associated with device | 31 | 9.1 6.4–12.9ROR 9.2 · χ² 216 / p 4e-49 | 8.4 EB05 6.1 · IC025 +2.4 3/3 methods agree | Not in label — unassessed | serious n=3 · 84% consumer | no trial data cached |
| Incorrect dose administered by device | 35 | 8.1 5.9–11.3ROR 8.2 · χ² 212 / p 2e-48 | 7.5 EB05 5.6 · IC025 +2.3 3/3 methods agree | Reporting / coding artifact | serious n=2 · 77% consumer | no trial data cached |
| Impaired gastric emptying | 17 | 7.9 4.9–12.7ROR 7.9 · χ² 95 / p 8e-23 | 6.8 EB05 4.4 · IC025 +1.9 3/3 methods agree | Not in label — unassessed | serious PRR 28.4 | no trial data cached |
| Product prescribing issue | 26 | 7.6 5.1–11.1ROR 7.6 · χ² 141 / p 7e-33 | 6.8 EB05 4.8 · IC025 +2.1 3/3 methods agree | Reporting / coding artifact | serious PRR 4.9 · 81% consumer | no trial data cached |
| Hypoglycaemia (low blood sugar) | 58 | 7.1 5.5–9.1ROR 7.2 · χ² 296 / p 1e-66 | 6.7 EB05 5.4 · IC025 +2.3 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 12.3 | no trial data cached |
| Visual impairment | 145 | 7.0 5.9–8.2ROR 7.2 · χ² 738 / p 7e-163 | 6.8 EB05 5.9 · IC025 +2.5 3/3 methods agree | Not in label — unassessed | serious PRR 4.7 · 94% consumer | no trial data cached |
| Device issue | 95 | 6.4 5.3–7.8ROR 6.6 · χ² 432 / p 3e-96 | 6.3 EB05 5.3 · IC025 +2.3 3/3 methods agree | Reporting / coding artifact | serious PRR 13.3 · 79% consumer | no trial data cached |
| Hypoacusis | 43 | 5.9 4.4–8.0ROR 6.0 · χ² 171 / p 2e-39 | 5.6 EB05 4.3 · IC025 +2.0 3/3 methods agree | Not in label — unassessed | serious PRR 3.6 · 88% consumer | no trial data cached |
| Device defective | 16 | 5.8 3.6–9.5ROR 5.9 · χ² 59 / p 6e-15 | 5.1 EB05 3.3 · IC025 +1.5 3/3 methods agree | Reporting / coding artifact | – | no trial data cached |
| Inappropriate schedule of product administration | 146 | 4.9 4.2–5.7ROR 5.0 · χ² 450 / p 4e-100 | 4.8 EB05 4.2 · IC025 +2.0 3/3 methods agree | Reporting / coding artifact | serious PRR 1.9 · 87% consumer | no trial data cached |
| Glomerular filtration rate decreased | 10 | 4.9 2.6–9.1ROR 4.9 · χ² 27 / p 1e-7 | 4.1 EB05 2.4 · IC025 +1.0 3/3 methods agree | Lab value / disease marker | serious PRR 9.6 | no trial data cached |
| Device use issue | 14 | 4.8 2.8–8.1ROR 4.8 · χ² 38 / p 3e-10 | 4.2 EB05 2.7 · IC025 +1.2 3/3 methods agree | Reporting / coding artifact | serious n=2 | no trial data cached |
| Device leakage | 31 | 4.3 3.0–6.1ROR 4.4 · χ² 76 / p 1e-18 | 4.1 EB05 3.0 · IC025 +1.4 3/3 methods agree | Reporting / coding artifact | serious n=2 | no trial data cached |
| Hyperglycaemia (high blood sugar) | 21 | 3.4 2.2–5.2ROR 3.4 · χ² 34 / p 4e-9 | 3.2 EB05 2.2 · IC025 +1.0 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 5.3 | no trial data cached |
| Intentional product misuse | 48 | 3.3 2.5–4.3ROR 3.3 · χ² 73 / p 5e-18 | 3.2 EB05 2.5 · IC025 +1.2 3/3 methods agree | Reporting / coding artifact | serious PRR 3.5 · 90% consumer | no trial data cached |
| Product dose omission | 36 | 3.2 2.3–4.4ROR 3.2 · χ² 53 / p 2e-13 | 3.1 EB05 2.4 · IC025 +1.1 3/3 methods agree | Reporting / coding artifact | serious PRR 5.8 · 86% consumer | no trial data cached |
| Contraindicated product administered | 16 | 3.1 1.9–5.1ROR 3.1 · χ² 21 / p 2e-6 | 2.9 EB05 1.9 · IC025 +0.7 | Reporting / coding artifact | serious PRR 2.3 | no trial data cached |
| Pancreatitis (pancreas inflammation) | 28 | 3.1 2.2–4.5ROR 3.1 · χ² 38 / p 3e-10 | 3.0 EB05 2.2 · IC025 +1.0 3/3 methods agree | Not in label — unassessed | serious PRR 10.2 | no trial data cached |
| Foot fracture | 10 | 3.1 1.7–5.8ROR 3.1 · χ² 12 / p 2e-4 | 2.8 EB05 1.7 · IC025 +0.4 | Not in label — unassessed | serious PRR 5.9 | no trial data cached |
| Expired product administered | 16 | 2.8 1.7–4.6ROR 2.9 · χ² 17 / p 2e-5 | 2.7 EB05 1.8 · IC025 +0.6 | Reporting / coding artifact | serious n=2 | no trial data cached |
| Injection site rash | 14 | 2.7 1.6–4.6ROR 2.7 · χ² 14 / p 1e-4 | 2.6 EB05 1.6 · IC025 +0.5 | Labeled (related wording) related wording | – | no trial data cached |
| Extra dose administered | 17 | 2.5 1.6–4.0ROR 2.5 · χ² 14 / p 9e-5 | 2.4 EB05 1.6 · IC025 +0.5 | Labeled (related wording) related wording | serious n=3 | no trial data cached |
| Needle issue | 12 | 2.5 1.4–4.4ROR 2.5 · χ² 9 / p 0.001 | 2.3 EB05 1.4 · IC025 +0.2 | Labeled (related wording) related wording | – | no trial data cached |
| Diabetic ketoacidosis | 10 | 2.5 1.3–4.6ROR 2.5 · χ² 7 / p 0.003 | 2.3 EB05 1.4 · IC025 +0.1 | Likely indication confounding term in indications | serious PRR 7.9 | no trial data cached |
| Dementia | 11 | 2.3 1.3–4.2ROR 2.3 · χ² 7 / p 0.004 | 2.2 EB05 1.3 · IC025 +0.1 | Not in label — unassessed | serious PRR 8.0 | no trial data cached |
| Eye disorder | 12 | 2.2 1.2–3.8ROR 2.2 · χ² 6 / p 0.006 | 2.1 EB05 1.3 · IC025 +0.1 | Not in label — unassessed | serious PRR 2.0 | no trial data cached |
Trial evidence (ClinicalTrials.gov)
Most frequently reported reactions
By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.
| Reaction | Reports | PRR 95% CI · ROR · χ²/p | EBGM EB05 · IC025 | Label screen | Serious-only & strata | Trial cross-check |
|---|---|---|---|---|---|---|
| Blood glucose increased | 460 | 14.4 13.2–15.7ROR 16.4 · χ² 5,755 / p <1e-300 | 14.3 EB05 13.3 · IC025 +3.7 3/3 methods agree | Labeled (related wording) related wording | serious PRR 16.1 · 71% consumer | no trial data cached |
| Product storage error | 400 | 27.4 25.0–30.1ROR 30.8 · χ² 10,148 / p <1e-300 | 27.3 EB05 25.1 · IC025 +4.6 3/3 methods agree | Reporting / coding artifact | serious PRR 35.2 · 80% consumer | no trial data cached |
| Accidental exposure to product | 323 | 19.1 17.3–21.2ROR 21.0 · χ² 5,545 / p <1e-300 | 19.1 EB05 17.4 · IC025 +4.0 3/3 methods agree | Reporting / coding artifact | serious PRR 8.5 · 91% consumer | no trial data cached |
| Exposure via skin contact | 186 | 49.0 42.5–56.3ROR 51.6 · χ² 8,626 / p <1e-300 | 48.3 EB05 42.8 · IC025 +5.2 3/3 methods agree | Reporting / coding artifact | serious n=2 · 91% consumer | no trial data cached |
| Inappropriate schedule of product administration | 146 | 4.9 4.2–5.7ROR 5.0 · χ² 450 / p 4e-100 | 4.8 EB05 4.2 · IC025 +2.0 3/3 methods agree | Reporting / coding artifact | serious PRR 1.9 · 87% consumer | no trial data cached |
| Visual impairment | 145 | 7.0 5.9–8.2ROR 7.2 · χ² 738 / p 7e-163 | 6.8 EB05 5.9 · IC025 +2.5 3/3 methods agree | Not in label — unassessed | serious PRR 4.7 · 94% consumer | no trial data cached |
| Blood glucose decreased | 97 | 11.9 9.8–14.5ROR 12.2 · χ² 958 / p 1e-210 | 11.7 EB05 9.9 · IC025 +3.2 3/3 methods agree | Labeled (related wording) related wording | serious PRR 15.3 · 81% consumer | no trial data cached |
| Device issue | 95 | 6.4 5.3–7.8ROR 6.6 · χ² 432 / p 3e-96 | 6.3 EB05 5.3 · IC025 +2.3 3/3 methods agree | Reporting / coding artifact | serious PRR 13.3 · 79% consumer | no trial data cached |
| Injection site pain (pain where injected) | 78 | 1.5 1.2–1.9ROR 1.5 · χ² 13 / p 1e-4 | 1.5 EB05 1.3 · IC025 +0.2 | Labeled (related wording) related wording | serious PRR 3.6 | no trial data cached |
| Wrong technique in device usage process | 77 | 10.0 8.0–12.4ROR 10.2 · χ² 612 / p 2e-135 | 9.7 EB05 7.9 · IC025 +2.9 3/3 methods agree | Reporting / coding artifact | serious n=2 · 94% consumer | no trial data cached |
| Glycosylated haemoglobin increased | 73 | 17.2 13.7–21.5ROR 17.5 · χ² 1,092 / p 7e-240 | 17.0 EB05 14.0 · IC025 +3.6 3/3 methods agree | Lab value / disease marker | serious PRR 28.9 | no trial data cached |
| Blood glucose abnormal | 72 | 23.0 18.3–29.0ROR 23.5 · χ² 1,491 / p <1e-300 | 22.8 EB05 18.7 · IC025 +3.9 3/3 methods agree | Lab value / disease marker | serious PRR 19.7 · 74% consumer | no trial data cached |
| Product dispensing error | 66 | 18.0 14.1–22.8ROR 18.3 · χ² 1,038 / p 4e-228 | 17.8 EB05 14.5 · IC025 +3.6 3/3 methods agree | Reporting / coding artifact | serious n=4 · 86% consumer | no trial data cached |
| Incorrect dose administered | 60 | 1.6 1.2–2.0ROR 1.6 · χ² 12 / p 2e-4 | 1.6 EB05 1.3 · IC025 +0.2 | Reporting / coding artifact | serious PRR 1.3 · 70% consumer | no trial data cached |
| Hypoglycaemia (low blood sugar) | 58 | 7.1 5.5–9.1ROR 7.2 · χ² 296 / p 1e-66 | 6.7 EB05 5.4 · IC025 +2.3 3/3 methods agree | Labeled adverse reaction exact term | serious PRR 12.3 | no trial data cached |
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.
- Injury associated with device — n=31, PRR 9.1
- Visual impairment — n=145, PRR 7.0
- Hypoacusis — n=43, PRR 5.9
- Pancreatitis — n=28, PRR 3.1
✓ A hand-written Bradford Hill causality assessment exists for this drug: Insulin glargine ↔ Hypoglycaemia (blood glucose decreased).
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 Insulin Glargine and Lixisenatide?
In FDA FAERS, the most frequently co-reported reaction terms for Insulin Glargine and Lixisenatide are blood glucose increased, visual impairment, blood glucose decreased, injection site pain, glycosylated haemoglobin increased, blood glucose abnormal. 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 Insulin Glargine and Lixisenatide have an FDA boxed warning?
No. The FDA label retrieved for Insulin Glargine and Lixisenatide has no boxed warning; see the label's Warnings and Precautions for the recognised risks.
Do FAERS signals prove that Insulin Glargine and Lixisenatide 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
- FDA label via openFDA (set ID 257ca17b-6ff7-4f2e-9037-4c185bac5768, effective 20230427; matched on
openfda.generic_name.exact:"INSULIN GLARGINE") - Bayesian shrinkage measures computed offline over all 1,317,300 cached pairs: BCPNN information component (IC, with Norén closed-form IC025) and MGPS empirical-Bayes geometric mean (EBGM, EB05) with a two-component gamma prior fitted by maximum marginal likelihood (α₁=0.57, β₁=0.02, α₂=1.42, β₂=0.70, w=0.17); unstratified
- FAERS pair statistics from the OpenPV build of 2026-09-14 (openFDA
count=aggregation, fieldpatient.drug.openfda.generic_name.exact, 68 reaction terms, min 3 co-reports); PRR/ROR with 95% CI, chi-square with Yates correction - Serious-only and stratified counts (serious:1, patient.patientsex, primarysource.qualification) from openFDA count queries; serious-only PRR uses the drug serious report total and the term global serious total (N_serious=11,882,979); strata shown only when n ≥ 20
- Seriousness and sex counts from openFDA
count=serious,patient.patientsex,seriousnessdeath
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.