Benzocaine Toxicity in Dogs
Benzocaine, a topical anesthetic, is a popular medicine commonly used in veterinary applications. While benzocaine is generally recognized as safe for use in dogs, it rare cases in may cause serious reactions.
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Uses
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Veterinarians, pet guardians and dog groomers use benzocaine as a topical treatment for gum inflammation, skin disease and trauma-related pain.
Skin Irritation
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In some sensitive dogs, benzocaine can cause a rash at the site where it is applied. This reaction is fairly common and mild; it is not a sign of a significant problem.
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Methemoglobinemia
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The Journal of the American Medical Association published a case report of three dogs who acquired methemoglobinemia--a serious blood disease--after their owners applied human-grade benzocaine to skin rashes. This complication is extremely rare and has not been reported in peer-reviewed literature since 1979.
Allergy
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Some dogs may experience a serious allergic reaction to benzocaine, especially if it has been ingested. Symptoms of a serious allergic reaction include vomiting, wheezing and lethargy.
Considerations
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While benzocaine may help relieve local pain and inflammation, it is ineffective and possibly dangerous when taken internally. Dog owners should monitor their pets to prevent them from ingesting benzocaine.
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