Drug profile

The FDA adverse-event record for Unknown Whether Concomitant Medications

29 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Unknown Whether Concomitant Medications. See the species affected, top reactions, and outcomes below.

29
adverse-event reports
0.0%
death-coded share
Dog
most-reported species
10
Emesis - 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.
29
Total Reports
0
Deaths Reported
0.0%
Death Rate

Active Ingredients

Unknown Whether Concomitant Medications

Administration Routes

Unknown

Species Affected

Dog 22
Cat 7

Most Affected Breeds

Dog (unknown) 14
Cat (unknown) 5
Retriever - Golden 3
Domestic Longhair 2
Maltese 1
Terrier - West Highland White 1
Shepherd Dog - German 1
Spaniel - Boykin 1
Poodle - Miniature 1

Most Reported Reactions

Emesis 10
Cough 3
Lack of efficacy (ectoparasite) - flea 3
Other abnormal test result NOS 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Lack of efficacy - NOS 2
Diarrhoea 2
Itching 2
Hypersalivation 2
Blood in faeces 2
Cataract 1
Anorexia 1

Outcome Breakdown

Outcome Unknown
13 (44.8%)
Recovered/Normal
9 (31.0%)
Ongoing
7 (24.1%)

Unknown Whether Concomitant Medications Adverse Event Insights

29 reports name Unknown Whether Concomitant Medications; 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: Unknown Whether Concomitant Medications. Administration route: Unknown.

By species: Dog (22 reports), Cat (7 reports). By breed: Dog (unknown) (14), Cat (unknown) (5), Retriever - Golden (3).

Leading clinical signs: Emesis (10), Cough (3), Lack of efficacy (ectoparasite) - flea (3), Other abnormal test result NOS (2). Outcome, 29 coded reports: Outcome Unknown leads at 44.8%.

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.