← Back

Flea and Tick Medications

Google+PinterestShare

Poisonous to: Cats, Dogs

Level of toxicity: Generally mild to severe, life-threatening

Common signs to watch for:

  • Profuse drooling
  • Vomiting
  • Tremoring
  • Hyperexcitability
  • Agitation
  • Seizures
  • Weakness
  • Difficulty breathing

Most of the common flea and tick medications are topical drugs (applied to the skin over the neck/back) that contain pyrethrins or pyrethroids. Pyrethrins are a class of drugs derived from the Chrysanthemum flower/plant, while pyrethroids are synthetic derivatives.

In cats, signs of poisoning include profuse drooling, vomiting, tremoring, hyperexcitability, agitation, seizures, weakness, and difficulty breathing. Untreated, it can be fatal. These signs are rarely seen in dogs. In dogs, signs of parasthesia (a tingling sensation), scratching, drooling, etc. may be seen. Treatment includes prompt removal of the product (by bathing with a liquid dish soap like Dawn, Joy, Palmolive) to get the greasy substance off.

If you think your dog or cat is having side-effects or was exposed to pyrethrins/pyrethroids, call your veterinarian or Pet Poison Helpline immediately for life-saving treatment advice.

Poison type: Medications

Alternate names: flea, tick, over-the-counter flea, pyrethrins, pyrethroids