Why mold changes everything for a 5 kg cat
The danger here isn't just the pecans themselves—it's the invisible mold growing on them. Even a few moldy nuts can produce tremorgenic mycotoxins, which disrupt the nervous system. For a cat this size, four pecans are enough to trigger full-body tremors that escalate quickly. The first sign might be subtle: a paw that won't stay still, or her chin twitching like she's chewing air.
Once neurological symptoms begin, they often worsen over the next 2-4 hours without veterinary intervention. Unlike some toxins that cause vomiting first, these mycotoxins skip straight to muscle spasms. Your other cat sniffing the wrapper isn't at risk—toxins require ingestion. Focus entirely on the one who ate the nuts.
What seizures look like in cats
Many owners mistake early tremors for shivering or clumsiness. True toxin-induced seizures often start with excessive drooling or dilated pupils before progressing to limb paddling. Your cat may lose control of her bladder or bowels during an episode. Time any abnormal movements—even 10 seconds of twitching warrants an emergency visit.
Never attempt home remedies like milk or activated charcoal for neurological symptoms. Unlike ingested poisons that absorb slowly, mycotoxins act fast on the brain. Cooling her down or dimming lights won't stop the tremors—only IV medications at the clinic can.
Why you can't wait this out
Some toxins cause mild upset that passes in a day, but tremorgenic mycotoxins are different. Without treatment, the shaking leads to dangerous hyperthermia (overheating) as muscles work uncontrollably. A 5 kg cat's small body can't dissipate that heat efficiently.
Vets often administer muscle relaxants and IV fluids to protect the kidneys from heat stress. The sooner treatment starts, the less medication she'll need. Delaying risks brain damage from prolonged seizures or secondary organ failure.
Handling a seizuring cat safely
If tremors start before you reach the vet, clear space around her to prevent injury. Never put your hands near her mouth—cats can't control their bite during seizures. Wrap her loosely in a towel if you need to transport her while shaking.
Note every detail: when the pecans were eaten, when symptoms began, whether she's responsive between episodes. This timeline helps the vet choose the right anticonvulsants. The cat who only sniffed needs no treatment, but her housemate requires immediate care.
The step-by-step response, from the first minute to the vet visit, is in our Pecan Poisoning in Dogs emergency guide.