Toxicity can occur if a dog is given an excessive dose of the medication (10 to 20 times the recommended dose). Additionally, certain dogs are genetically hypersensitive to the medication. In these dogs, ivermectin can pass directly to the brain and be toxic or even lethal.
How much ivermectin is toxic to dogs?
– For most dogs signs of toxicosis may be seen at doses greater than 2 mg/kg (0.9 mg/lb). Dogs affected by genetic sensitivity can have toxicosis with as little as 0.1 mg/kg (0.04 mg/lb).
What happens if you give ivermectin to a dog?
Ivermectin may cause a shock-like reaction in some dogs. If this occurs, contact your veterinarian. If you notice any side effects such as stomach upset, vomiting, diarrhea, dilated pupils, unsteadiness when walking, or a dazed demeanor, contact your veterinarian.
What dog breeds Cannot have ivermectin?
While the sensitivity to this type of medication is not always guaranteed, the following breeds are most likely to be affected: Old English Sheepdog. English Sheepdog. Shetland Sheepdog (Sheltie)
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