My cat accidentally got dog Frontline on her. Will she be alright?

The problem is usually the reverse, using dog flea treatment on cats. Cats are more sensitive to some ingredients than dogs. Your dog should be fine, especially if it is one of the products that is used on both species, just the dosage is different. If it is a product meant for cats exclusively, I suggest calling a pet poison helpline, such as this one: http://www.petpoisonhelpline.com/contact/

Keep an eye on Juno for signs of flea treatment toxicity including diarrhea, vomiting, excessive drooling, difficulty breathing, muscle tremors, weakness, and falling over. If you see any of those signs, take her into a vet immediately. Wash her now to get the flea treatment off of her.

Cats are exquisitely sensitive to flea treatments, so there is a potential this could cause problems in Monty. I would wash him off thoroughly with warm water and Dawn dish soap. Watch him for signs of toxicity which include excessive salivation, paw flicking, ear twitching, vomiting, diarrhea, depression, incoordination, and muscle tremors. If you see any of those, rush Monty into a vet immediately.

Pet Armor is the same active ingredient as Frontline. As long as you applied the correct cat product your cat should be fine. The product is very bitter and nasty tasting, that's why she drooled. To prevent this in the future, be careful to apply the product high on the back of your cat's head and neck only. Watch your cat for signs of illness just to be safe.

If Lilith ingested Frontline, there isn't much you can do for her at home unfortunately. She really needs to be seen by a veterinarian. They will at the very least give her some fluids to help hydrate her and flush the substance out. She may also need more treatments such as blood work and medication.

Fortunately Frontline does not cause any symptoms of toxicity at 5 times the normal dose, so a double dose would not be a problem. I'm not entirely sure why there wouldn't be enough Frontline in a tube however unless it was open - perhaps you had some tubes that were for a smaller dog (the tube size is the same for different doses but there is less medication for smaller dogs). If the tube was open it may not be as effective and you may want to consider adding a different preventative. If you are not 100% sure you have the right dose size the safest thing to do would probably be to wash it off.

In general, products that are labeled for cats are usually quite safe for dogs, as cats are much more sensitive to chemicals overall. As long as Duchess is in the same general weight range as your cat, I would not expect this to cause any problems. If she is acting normal, it should be okay to just monitor her at home. Possible signs of toxicity would include muscle tremors, lethargy, or seizures. If you see anything that concerns you, it's always an option to see an emergency vet to be safe.