Recombitek Lyme - 2126.R0

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2,012 adverse event reports submitted to the FDA

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,012
Total Reports
21
Deaths Reported
100.0%
Death Rate

Active Ingredients

Recombitek Lyme - 2126.R0

Administration Routes

SubcutaneousUnknownSubconjunctivalIntramuscularDentalOral

Species Affected

Dog 2,011
Horse 1

Most Affected Breeds

Retriever - Labrador 356
Retriever - Golden 221
Shepherd Dog - German 122
Shepherd Dog - Australian 96
Crossbred Canine/dog 82
Mountain Dog - Bernese 70
Beagle 63
Collie - Border 45
Siberian Husky 38
Boxer (German Boxer) 37

Most Reported Reactions

Lack of efficacy (bacteria) - Borrelia 1,246
Lack of efficacy (ectoparasite) - tick NOS 701
Lack of efficacy (bacteria) - NOS 575
Lack of efficacy (tick) 446
Lack of efficacy (bacteria) - Anaplasma 82
Vomiting 66
Lethargy (see also Central nervous system depression in 'Neurological') 49
Diarrhoea 40
Systemic disorder NOS 35
Drug dose omission 35
Other abnormal test result NOS 34
Underdose 24

Outcome Breakdown

Outcome Unknown
1,393 (69.2%)
Ongoing
509 (25.3%)
Recovered/Normal
81 (4.0%)
Euthanized
15 (0.7%)
Recovered with Sequela
10 (0.5%)
Died
6 (0.3%)

Data Summary

Metric Value
Total adverse event reports 2,012
Reports involving death 21
Case-fatality rate (reported events) 100.0%
Distinct species in reports 2
Distinct breeds in reports 20
Distinct reactions reported 20
Active ingredients on file 1

Source: FDA Center for Veterinary Medicine — Adverse Event Reporting (CVM AER). Counts reflect voluntary reports only.

Recombitek Lyme - 2126.R0 Adverse Event Insights

The FDA Center for Veterinary Medicine database currently holds 2,012 adverse event reports referencing Recombitek Lyme - 2126.R0, including 21 reports in which the animal died — a 100.0% case-fatality figure among reported events only, not a population-level mortality rate. Active ingredient on file: Recombitek Lyme - 2126.R0. Reported administration routes include Subcutaneous, Unknown, Subconjunctival, Intramuscular. These numbers reflect voluntary submissions from pet owners, veterinarians, and manufacturers and therefore under-represent mild events and over-represent severe ones — a pattern the FDA has documented repeatedly for pharmacovigilance datasets.

The species most frequently named in Recombitek Lyme - 2126.R0 reports are Dog (2,011 reports), Horse (1 reports), with Dog accounting for the largest share. Within those species, Retriever - Labrador (356), Retriever - Golden (221), Shepherd Dog - German (122) appear most often — though breed popularity and ownership density shape these counts as much as any drug-specific sensitivity. This distribution matters because the same active ingredient can behave very differently across body sizes, ages, and species physiology.

The most commonly reported clinical signs associated with Recombitek Lyme - 2126.R0 are Lack of efficacy (bacteria) - Borrelia (1,246), Lack of efficacy (ectoparasite) - tick NOS (701), Lack of efficacy (bacteria) - NOS (575), Lack of efficacy (tick) (446). Of the 2,014 reports with a coded outcome, Outcome Unknown is the leading category at 69.2%. Because FDA adverse event data describes correlation rather than causation, these figures are best used to frame informed questions with a veterinarian and to compare reporting patterns across related products — not as a standalone safety verdict on Recombitek Lyme - 2126.R0.

Source: FDA Center for Veterinary Medicine — Adverse Event Reports FDA Center for Veterinary Medicine — Adverse Event Reports Data reflects voluntary submissions and may not represent actual incidence rates

Related

Data sourced from official AKC, AVMA, ACVO, and breed-club veterinary references. See our methodology for details. Retrieved and formatted by PlainBreed Editorial