It is suspected that cats may be more likely to develop permethrin toxicity because they have different liver metabolic pathways to other species â in particular, they have a deficiency in the enzyme hepatic glucuronosyl transferase. Source(s): http://www.fabcats.org/owners/poisons/pe...
Re: Swallowed chunk of rawhide. In all honesty you need to contact your vet. Rawhides do cause blockages, especially in smaller dogs, because the pieces are too large to pass through the intestine. Contact your vet, and ask for some x rays. Cheapest, and most effiecient way to see if there is a blockage, how large the piece is, and if it is moving through.
Dogs can eat even banana peels, especially if they find it in the trash - one more reason for a dog to learn what can and what shouldn't be done. Banana peels are not toxic for the dogs, but they should be avoided - banana peels are not digestible by the dogs and can cause intestinal obstructions and other health problems.