Drug profile

The FDA adverse-event record for Insulin Glargine

60 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Insulin Glargine. See the species affected, top reactions, and outcomes below.

60
adverse-event reports
16.7%
death-coded share
Cat
most-reported species
14
Hypoglycaemia - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
60
Total Reports
10
Deaths Reported
16.7%
Death Rate

Active Ingredients

Insulin Glargine

Administration Routes

UnknownSubcutaneousParenteral

Species Affected

Cat 58
Dog 2

Most Affected Breeds

Domestic Shorthair 34
Domestic Longhair 4
Cat (unknown) 4
Maine Coon 4
Domestic Mediumhair 3
Siamese 2
American Shorthair 2
Spitz - German Pomeranian 1
Domestic (unspecified) 1
Persian 1

Most Reported Reactions

Hypoglycaemia 14
Ketosis 14
Lethargy (see also Central nervous system depression in Neurological) 13
Hyperglycaemia 12
Diabetic ketoacidosis 11
Weight loss 10
Death by euthanasia 10
Diarrhoea 9
Not eating 8
Decreased appetite 7
Vomiting 6
Dehydration 6

Outcome Breakdown

Outcome Unknown
19 (32.2%)
Recovered/Normal
15 (25.4%)
Ongoing
13 (22.0%)
Euthanized
10 (16.9%)
Recovered with Sequela
2 (3.4%)

Insulin Glargine Adverse Event Insights

60 reports name Insulin Glargine; 10 recorded a death outcome (16.7% of reported events, not a population-level mortality rate). Active ingredient: Insulin Glargine. Administration routes: Unknown, Subcutaneous, Parenteral.

By species: Cat (58 reports), Dog (2 reports). By breed: Domestic Shorthair (34), Domestic Longhair (4), Cat (unknown) (4).

Leading clinical signs: Hypoglycaemia (14), Ketosis (14), Lethargy (see also Central nervous system depression in Neurological) (13), Hyperglycaemia (12). Outcome, 59 coded reports: Outcome Unknown leads at 32.2%.

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.