Drug profile

The FDA adverse-event record for Muscle Relaxant (Unknown)

10 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Muscle Relaxant (Unknown). See the species affected, top reactions, and outcomes below.

10
adverse-event reports
0.0%
death-coded share
Dog
most-reported species
4
Lack of efficacy - NOS - 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.
10
Total Reports
0
Deaths Reported
0.0%
Death Rate

Active Ingredients

Muscle Relaxant (Unknown)

Administration Routes

UnknownOral

Species Affected

Dog 9
Human 1

Most Affected Breeds

Chihuahua 2
Unknown 1
Shepherd Dog - German 1
Beagle 1
Bichon Frise 1
Spaniel - Cocker American 1
Dog (other) 1
Spitz - German Pomeranian 1
Retriever - Golden 1

Most Reported Reactions

Lack of efficacy - NOS 4
Lethargy (see also Central nervous system depression in Neurological) 3
Vomiting 2
Diarrhoea 2
Not himself/herself 2
Lack of efficacy (ectoparasite) - flea 1
Scratching 1
Emesis 1
Lethargy (see also Central nervous system depression in 'Neurological') 1
Gastric irritation 1
Accidental exposure 1
Pulmonary hypertension 1

Outcome Breakdown

Recovered/Normal
5 (50.0%)
Outcome Unknown
4 (40.0%)
Ongoing
1 (10.0%)

Muscle Relaxant (Unknown) Adverse Event Insights

10 reports name Muscle Relaxant (Unknown); 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: Muscle Relaxant (Unknown). Administration routes: Unknown, Oral.

By species: Dog (9 reports), Human (1 reports). By breed: Chihuahua (2), Unknown (1), Shepherd Dog - German (1).

Leading clinical signs: Lack of efficacy - NOS (4), Lethargy (see also Central nervous system depression in Neurological) (3), Vomiting (2), Diarrhoea (2). Outcome, 10 coded reports: Recovered/Normal leads at 50.0%.

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.