Suspect poisoning? US: ASPCA Poison Control (888) 426-4435 · UK: 01202 509 000 · Severe symptoms → nearest emergency vet now.

My 3.5 kg cat licked a dime-sized drop of organophosphate insecticide off her front paw — do I need to rush to the vet?

Cats · Emergency guide

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Yes, go now. Even a tiny lick of wet insecticide can deliver a serious dose to a 3.5 kg cat — organophosphates overstimulate the nervous system within minutes. Watch for excessive drooling, watery eyes, tremors, or a cat who won't stand. Wash her paw gently with mild soap and water while you're getting her carrier, but do not induce vomiting. Call your vet or the ASPCA Poison Control line at 888-426-4435 on the way — anticholinergic treatment works best when started early.

Why organophosphates are toxic to pets

These chemicals inhibit acetylcholinesterase, causing a buildup of acetylcholine and overstimulation of nerves.

Even brief skin contact or inhalation can produce severe signs in dogs and cats.

Why speed matters

Delaying care significantly worsens outcomes. Some signs appear hours or days later, so "looks fine right now" is not a reason to wait.

Signs to watch for

  • Excessive salivation
  • Lacrimation or watery eyes
  • Urination and defecation
  • Muscle tremors or weakness
  • Seizures or collapse

What to do right now

  1. Call your vet or a pet poison control line without delay
  2. Remove the pet from the contaminated area and keep it calm
  3. Wash any contaminated fur or skin with mild soap and water
  4. Do NOT induce vomiting unless instructed by a veterinarian
  5. Transport the animal to a veterinary clinic for anticholinergic treatment
If your pet shows any of the signs above, go to the nearest emergency vet now and call ahead.

The step-by-step response, from the first minute to the vet visit, is in our Organophosphate Insecticide Toxicity in Dogs and Cats emergency guide.

Open the full emergency guide: Organophosphate Insecticide Toxicity in Dogs and Cats →