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

My 5 kg cat with kidney disease licked wet organophosphate off a leaf and is now drooling heavily. What do I do?

Cats · Emergency guide

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

Short answer

This is an emergency — her kidney disease means she may not clear the toxin well. Organophosphates cause nerve overstimulation, and that drooling is an early sign of poisoning. Get her away from the leaf and wash any wet chemical off her fur with mild soap and water right now. Do not try to make her vomit. Call your vet or the ASPCA poison line at 888-426-4435 immediately; she needs specific anticholinergic treatment.

Why kidney disease makes this lick so dangerous

Your cat's kidneys are already struggling to filter waste, and organophosphates add a toxin they can't process efficiently. Even a small amount lingers longer in her system, increasing the risk of severe nerve overstimulation. That heavy drooling means the chemical is already affecting her salivary glands — the next signs could be vomiting, tremors, or trouble breathing within the hour.

Wash her face and paws with mild dish soap and lukewarm water immediately, focusing on areas where the wet chemical might cling. Avoid her eyes and nose, but don't wait for a perfect rinse — getting most of it off now matters more than thoroughness. Her kidney condition means you can't afford to watch and wait like a healthy cat might.

How kidney failure changes the poisoning timeline

Most cats show organophosphate signs within 4-6 hours, but with compromised kidneys, symptoms may escalate faster or last days longer. The drooling suggests her body is already reacting, and delayed toxin clearance could lead to repeated waves of weakness or muscle twitches over the next 24 hours.

Watch for subtle changes like pupils constricting to pinpoints or her chin staying damp between episodes. These indicate worsening effects on her nervous system. Even if she seems stable after washing, her kidneys won't provide the usual buffer against prolonged toxicity.

Why vomiting isn't an option here

Inducing vomiting could dehydrate her further and stress her kidneys, potentially pushing them into crisis. Organophosphates also risk being aspirated into the lungs during vomiting, causing chemical pneumonia — a deadly combo with existing kidney issues.

If she vomits on her own, note whether it contains leaf fragments or appears foamy. Foam suggests excessive saliva production, a sign the toxin is actively affecting her nervous system. Either way, don't give food or water until a vet assesses her — swallowing difficulties could make choking likely.

The critical first six hours with kidney compromise

Time matters differently for cats with kidney disease — their weakened state means small symptoms escalate fast. If her drooling continues after washing, or if her gums feel tacky instead of slick, she's likely losing too much fluid. Kidney cats can't regulate electrolytes well during poisoning.

Prepare for possible hospitalization: grab her medical records detailing her kidney values and any medications. Vets may need to adjust standard treatments like atropine due to her condition. Even if signs seem mild now, her kidneys turn this into a race against slower toxin clearance.

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 →