Boric acid is a mild acid commonly used as a pesticide, especially for persistent infestations of cat fleas. Boric acid can be toxic to cats in large quantities, or with exposure over extended periods of time, so direct contact should be avoided.
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Cats and boric acid are an unhealthy combination
Identification
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Boric acid, which is used in crystal or powder form and can be absorbed in water, is also known as Acidum Boricum or boracic acid. It is inexpensive and easy to use. Boric acid crystals are clear; the powder is white. It is used a pesticide, flame retardant or disinfectant.
Warning
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Boric acid has a low toxicity if ingested by cats, but it can be dangerous in substantial quantities over an extended period of time. The symptoms of boric acid poisoning in cats are muscle weakness, depression, weight loss, diarrhea, vomiting and seizures.
Treatment
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Cats that have been poisoned by boric acid must be treated with dialysis because boric acid cannot be absorbed by charcoal.
Expert Insight
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Boric acid powder is an excellent solution to get rid of cat fleas because it does not evaporate like other pesticides. Even though it is not absorbed into the environment, it does pose a health threat to cats. Boric acid powder should only be used behind baseboards or counters, and in cracks that are not accessible to cats.
Effects
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A dilute solution of water and boric acid is sometimes suggested for treatment of cat eye infections, including conjunctivitis or herpesvirus. Repeated exposure to boric acid solution can cause sensitivity and eye inflammation. Other commercial products can be suggested by a veterinarian and are preferable to boric acid.
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