Why 3 kg makes this critical for your senior cat
A cat’s small body weight means toxins from even partial chewing of a naphthalene mothball hit harder—especially concerning for an older cat with likely reduced liver function. At 3 kg, your cat lacks the mass to dilute the toxins effectively. Symptoms like lethargy or rapid breathing may appear within 30 minutes as her red blood cells start rupturing.
Senior cats often hide symptoms until collapse occurs. The vet will prioritize blood gas tests and possibly oxygen therapy—naphthalene interferes with oxygen transport. Time matters more than the amount eaten; a few licks can be enough to trigger a crisis in a petite senior.
Protecting your other cat from secondary exposure
While one cat is at the vet, thoroughly vacuum carpets and wash any fabrics near the mothball—naphthalene fumes linger and can cause respiratory distress in cats. Check vents and baseboards where crumbs may have rolled. Your unaffected cat might groom contaminated paws later.
Use rubber gloves to handle any remaining mothballs; skin contact transfers toxins you could accidentally spread. Wash food bowls and bedding in hot water with baking soda—ordinary detergent won’t break down the chemicals. Confine both cats to a clean room until the house is fully aired out.
Monitoring the first 12 hours post-exposure
If your cat receives treatment early, watch for rebound symptoms like pale gums or loss of coordination when she comes home. Naphthalene’s effects come in waves as the liver processes it. Keep her warm and offer water frequently, but don’t force food—vomiting risks aspiration pneumonia now.
Set up a quiet recovery space away from other pets. Use non-clumping litter temporarily—some clumping varieties interact badly with naphthalene byproducts in urine. Nighttime monitoring is crucial; wrap her carrier in a warm towel if she trembles.
Preventing future access without mothballs
After this scare, switch to alternatives like vacuum-sealed herb pouches or silica gel packets for moth control. Cats are drawn to mothballs’ odd texture, so check that replacement deterrents aren’t similarly appealing. Store woolens in airtight bins instead of open shelves.
Consider installing childproof latches on closets—your cat’s age doesn’t reduce her curiosity. One exposure increases sensitivity to naphthalene’s effects, making future incidents riskier. Ask your vet about iron supplements during recovery if blood tests showed anemia.
The step-by-step response, from the first minute to the vet visit, is in our Mothballs (Naphthalene, Paradichlorobenzene) emergency guide.