Drug profile

The FDA adverse-event record for 2-Mercaptobenzothiazole

22 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference 2-Mercaptobenzothiazole. See the species affected, top reactions, and outcomes below.

22
adverse-event reports
0.0%
death-coded share
Dog
most-reported species
9
Accidental exposure - 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.
22
Total Reports
0
Deaths Reported
0.0%
Death Rate

Active Ingredients

2-Mercaptobenzothiazole

Administration Routes

TopicalOral

Species Affected

Dog 14
Human 7
Cat 1

Most Affected Breeds

Unknown 7
Dog (unknown) 5
Retriever - Golden 2
Chihuahua 2
Dachshund - Miniature 2
Beagle 1
Pit Bull 1
Doberman Pinscher 1
Manx 1

Most Reported Reactions

Accidental exposure 9
Vomiting 5
Lethargy (see also Central nervous system depression in 'Neurological') 4
Accidental drug intake by child 4
Anorexia 3
No sign 3
Licking at application site 2
Incorrect route of drug administration 2
Anaemia NOS 1
Leucocytosis NOS 1
Other abnormal test result NOS 1
Haematuria 1

Outcome Breakdown

Outcome Unknown
14 (70.0%)
Recovered/Normal
5 (25.0%)
Recovered with Sequela
1 (5.0%)

2-Mercaptobenzothiazole Adverse Event Insights

22 reports name 2-Mercaptobenzothiazole; 0 recorded a death outcome (0.0% of reported events, not a population-level mortality rate). Active ingredient: 2-Mercaptobenzothiazole. Administration routes: Topical, Oral.

By species: Dog (14 reports), Human (7 reports), Cat (1 reports). By breed: Unknown (7), Dog (unknown) (5), Retriever - Golden (2).

Leading clinical signs: Accidental exposure (9), Vomiting (5), Lethargy (see also Central nervous system depression in 'Neurological') (4), Accidental drug intake by child (4). Outcome, 20 coded reports: Outcome Unknown leads at 70.0%.

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.