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.
Muscle Wasting and Fatigue: The use of prednisone in dogs can cause unusual weakness and fatigue. If your pet seems to be exhibiting lethargy, do consult a veterinarian. Inflammation: Prolonged use of prednisone can cause pain and inflammation in joints thereby making it difficult for the dog to walk.