Answer
Feb 03, 2013 - 11:30 AM
Boric acid is considered a harmful substance in many states and in the EU, although it is considered less toxic than table salt. Wikipedia has a great article on it - http://en.wikipedia.org/wiki/Boric_acid
Typically, any pesticide is safe if used properly. Boric acid is generally used in cracks, crevices, voids and other non-accessible places by cats. As long as the cat does not intentionally eat or consume the boric acid, then there should not be any harm.
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