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.
If you notice your dog is not passing regular bowel movements, an intestinal blockage may be to blame. A complete blockage prevents any stool from passing. With a partial blockage, small amounts of stool can pass, but you may notice your dog straining when he tries to go.If the obstruction is jagged, internal tearing is possible. Signs of blood or mucus may be evident in stool.f you notice your dog is not passing regular bowel movements, an intestinal blockage may be to blame. A complete blockage prevents any stool from passing. With a partial blockage, small amounts of stool can pass, but you may notice your dog straining when he tries to go.