Toad Venom Toxicosis in Dogs

Toad Venom Toxicosis is the condition in which dogs come into contact and get affected by highly toxic defense chemical of toads. Toad poisoning is a common condition and one that most often than not, proves to be fatal for the affected dog. Dogs may be poisoned by oral exposure to many types of toads. Severity varies greatly, depending on extent of contact and type of toad. Venom is produced by all toads, but its potency varies with species and apparently between geographic locations within individual species. Toad venom, a defensive mechanism, is secreted by glands located dorsal and posterior to the eyes and by other dermal structures, including warts. The venom, a thick, creamy white, highly irritating substance, can be expelled quickly by the contraction of periglandular muscles in the skin. 

The two common poisonous toad in U.S are the Colorado River Toad, found in Southwestern states from Arizona to Southern California, and the Giant Brown Toad also known as Cane Toads or Bufo Toads found in South Texas and Florida.

Symptoms of Toad poisoning appear soon after the dog has ingested the toxin and they include

Crying or other vocalization

Pawing at the mouth and/or eyes

Profuse drooling of saliva from the mouth

Change in the color of membranes of the mouth – may be inflamed or pale

Difficulty in breathing

Unsteady movements


High temperature



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